diff --git a/mindinsight/backend/profiler/profile_api.py b/mindinsight/backend/profiler/profile_api.py
index dfaded8eca631ecd0fd4283012ad89da5170a682..54a8bcf7b7dea3c2f32591808593a82fd56138b2 100644
--- a/mindinsight/backend/profiler/profile_api.py
+++ b/mindinsight/backend/profiler/profile_api.py
@@ -401,6 +401,52 @@ def get_minddata_pipeline_queue_info():
     return jsonify(op_queue_info)
 
 
+@BLUEPRINT.route("/profile/timeline-summary", methods=["GET"])
+def get_timeline_summary():
+    """
+    Get timeline summary info.
+
+    Returns:
+        Response, the timeline summary info.
+
+    Examples:
+        >>> GET http://xxxx/v1/mindinsight/profile/timeline-summary
+    """
+    summary_dir = request.args.get("dir")
+    profiler_dir = validate_and_normalize_profiler_path(summary_dir, settings.SUMMARY_BASE_DIR)
+    device_id = request.args.get("device_id", default='0')
+    _ = to_int(device_id, 'device_id')
+
+    analyser = AnalyserFactory.instance().get_analyser(
+        'timeline', profiler_dir, device_id)
+    summary = analyser.get_timeline_summary()
+
+    return summary
+
+
+@BLUEPRINT.route("/profile/timeline", methods=["GET"])
+def get_timeline_detail():
+    """
+    Get timeline detail.
+
+    Returns:
+        Response, the detail information of timeline.
+
+    Examples:
+        >>> GET http://xxxx/v1/mindinsight/profile/timeline
+    """
+    summary_dir = request.args.get("dir")
+    profiler_dir = validate_and_normalize_profiler_path(summary_dir, settings.SUMMARY_BASE_DIR)
+    device_id = request.args.get("device_id", default='0')
+    _ = to_int(device_id, 'device_id')
+
+    analyser = AnalyserFactory.instance().get_analyser(
+        'timeline', profiler_dir, device_id)
+    timeline = analyser.get_display_timeline()
+
+    return jsonify(timeline)
+
+
 def init_module(app):
     """
     Init module entry.
diff --git a/mindinsight/profiler/analyser/__init__.py b/mindinsight/profiler/analyser/__init__.py
index cf01fe5eb77cfbc29d7d8a2c38b1bbc4ddb5f229..bc2cf2374d1823a1123b6691413d324f3477fda8 100644
--- a/mindinsight/profiler/analyser/__init__.py
+++ b/mindinsight/profiler/analyser/__init__.py
@@ -14,4 +14,4 @@
 # ============================================================================
 """The analyser module."""
 from . import analyser, minddata_pipeline_analyser, step_trace_analyser, \
-    minddata_analyser
+    minddata_analyser, timeline_analyser
diff --git a/mindinsight/profiler/analyser/timeline_analyser.py b/mindinsight/profiler/analyser/timeline_analyser.py
new file mode 100644
index 0000000000000000000000000000000000000000..b4e94ba4b29cdaee74a8333a171e758b29fdf984
--- /dev/null
+++ b/mindinsight/profiler/analyser/timeline_analyser.py
@@ -0,0 +1,340 @@
+# Copyright 2020 Huawei Technologies Co., Ltd
+#
+# Licensed under the Apache License, Version 2.0 (the "License");
+# you may not use this file except in compliance with the License.
+# You may obtain a copy of the License at
+#
+# http://www.apache.org/licenses/LICENSE-2.0
+#
+# Unless required by applicable law or agreed to in writing, software
+# distributed under the License is distributed on an "AS IS" BASIS,
+# WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+# See the License for the specific language governing permissions and
+# limitations under the License.
+# ============================================================================
+"""The Timeline Analyser."""
+import json
+import os
+
+from mindinsight.profiler.analyser.base_analyser import BaseAnalyser
+from mindinsight.profiler.parser.container import TimelineContainer
+from mindinsight.profiler.common.exceptions.exceptions import ProfilerFileNotFoundException, \
+    ProfilerIOException
+from mindinsight.profiler.common.log import logger
+from mindinsight.profiler.common.validator.validate_path import validate_and_normalize_path
+
+
+SIZE_LIMIT = 20 * 1024 * 1024  # 20MB
+
+
+class TimelineAnalyser(BaseAnalyser):
+    """
+    Analyse timeline data from file.
+    """
+    __col_names__ = ['op_name', 'stream_id', 'start_time', 'duration']
+    _output_timeline_data_file_path = 'output_timeline_data_{}.txt'
+    _min_cycle_counter_file_path = 'min_cycle_counter_{}.txt'
+    _timeline_filename = 'timeline_detail_{}.json'
+    _display_filename = 'timeline_display_{}.json'
+    _timeline_summary_filename = 'timeline_summary_{}.json'
+    _timeline_meta = []
+    _timeline_summary = {
+        'total_time': 0,
+        'num_of_streams': 0,
+        'num_of_ops': 0,
+        'op_exe_times': 0
+    }
+
+    def _load(self):
+        """Load data according to the parsed profiling files."""
+        self.load_timeline_data()
+        self._timeline_summary['op_exe_times'] = len(self._timeline_meta)
+
+    def _filter(self, filter_condition):
+        """
+        Filter the profiling data according to the filter condition.
+
+        Args:
+            filter_condition (dict): The filter condition.
+        """
+
+    def get_display_timeline(self):
+        """
+        Get timeline data for UI display.
+
+        Returns:
+            json, the content of timeline data.
+        """
+        # Search timeline json file under profiling dir.
+        file_path = None
+        for filename in os.listdir(self._profiling_dir):
+            if filename.startswith('timeline_display') and filename.endswith('.json'):
+                file_path = os.path.join(self._profiling_dir, filename)
+                logger.debug('Display file found.')
+                break
+            elif filename.startswith('timeline_detail') and filename.endswith('.json'):
+                file_path = os.path.join(self._profiling_dir, filename)
+                logger.debug('Original file found.')
+                break
+
+        file_path = validate_and_normalize_path(
+            file_path, raise_key='Invalid timeline json path.'
+        )
+
+        timeline = []
+        if os.path.exists(file_path):
+            try:
+                with open(file_path, 'r') as f_obj:
+                    timeline = json.load(f_obj)
+            except (IOError, OSError) as err:
+                logger.error('Error occurred when read timeline display file: %s', err)
+                raise ProfilerIOException
+        else:
+            logger.info('No timeline file. Please check the output path.')
+
+        return timeline
+
+    def get_timeline_summary(self):
+        """
+        Get timeline summary information for UI display.
+
+        Returns:
+            json, the content of timeline summary information.
+        """
+        file_path = None
+        summary_file_name = 'timeline_summary_{}.json'.format(self._device_id)
+        if summary_file_name in os.listdir(self._profiling_dir):
+            file_path = os.path.join(self._profiling_dir, summary_file_name)
+
+        file_path = validate_and_normalize_path(
+            file_path, raise_key='Invalid timeline summary path.'
+        )
+
+        timeline_summary = {}
+        if os.path.exists(file_path):
+            try:
+                with open(file_path, 'r') as f_obj:
+                    timeline_summary = json.load(f_obj)
+            except (IOError, OSError) as err:
+                logger.error('Error occurred when read timeline summary file: %s', err)
+                raise ProfilerIOException
+
+        return timeline_summary
+
+    def write_timeline(self):
+        """Load data according to the parsed profiling files."""
+        # Write timeline to file.
+        file_size = self.write_timeline_to_json()
+
+        # If the file size is larger than 20MB, open a new file and
+        # write the first 20MB content into it.
+        if file_size > SIZE_LIMIT:
+            logger.debug('File size is larger than 20MB, will be resized...')
+            # write to json file for display
+            self.write_timeline_to_json_by_limitation()
+
+    def write_timeline_to_json(self):
+        """Write timeline to json."""
+        timeline_filename = self._timeline_filename.format(self._device_id)
+        timeline_file_path = os.path.join(
+            self._profiling_dir,
+            timeline_filename
+        )
+
+        timeline_file_path = validate_and_normalize_path(
+            timeline_file_path, raise_key='Invalid timeline json path.'
+        )
+
+        try:
+            with open(timeline_file_path, 'w') as json_file:
+                json.dump(self._timeline_meta, json_file)
+            file_size = os.path.getsize(timeline_file_path)
+        except (IOError, OSError) as err:
+            logger.error('Error occurred when write timeline full details: %s', err)
+            raise ProfilerIOException
+
+        return file_size
+
+    def write_timeline_to_json_by_limitation(self):
+        """Write timeline to json by limitation."""
+        display_filename = self._display_filename.format(self._device_id)
+        display_file_path = os.path.join(
+            self._profiling_dir,
+            display_filename
+        )
+
+        display_file_path = validate_and_normalize_path(
+            display_file_path, raise_key='Invalid timeline display json path.'
+        )
+
+        try:
+            with open(display_file_path, 'w') as json_file:
+                json_file.write('[')
+                for item in self._timeline_meta:
+                    json.dump(item, json_file)
+                    file_size = os.path.getsize(display_file_path)
+                    if file_size > SIZE_LIMIT:
+                        break
+                    json_file.write(',')
+                json_file.write(']')
+        except (IOError, OSError) as err:
+            logger.error('Error occurred when write timeline display file: %s', err)
+            raise ProfilerIOException
+
+    def write_timeline_summary(self):
+        """Write timeline summary to json."""
+        timeline_summary_file_path = os.path.join(
+            self._profiling_dir,
+            self._timeline_summary_filename.format(self._device_id)
+        )
+
+        timeline_summary_file_path = validate_and_normalize_path(
+            timeline_summary_file_path, raise_key='Invalid timeline summary path.'
+        )
+
+        try:
+            with open(timeline_summary_file_path, 'w') as json_file:
+                json.dump(self._timeline_summary, json_file)
+        except (IOError, OSError) as err:
+            logger.error('Error occurred when write timeline summary file: %s', err)
+            raise ProfilerIOException
+
+    def load_timeline_data(self):
+        """Load timeline data from file."""
+        file_path = os.path.join(
+            self._profiling_dir,
+            self._output_timeline_data_file_path.format(self._device_id)
+        )
+        file_path = validate_and_normalize_path(
+            file_path, raise_key='Invalid timeline txt file path.'
+        )
+        if not os.path.exists(file_path):
+            logger.error("Failed to find parsed timeline file.")
+            raise ProfilerFileNotFoundException('parsed timeline file')
+
+        stream_count_dict = {}
+        try:
+            with open(file_path, 'r') as f_obj:
+                for line in f_obj:
+                    if not line.startswith('=') and not line.startswith('op_name') and \
+                            not line.startswith('-'):
+                        line_list = line.split()
+                        self._parse_timeline_data(line_list)
+                        self._update_num_of_streams(line_list, stream_count_dict)
+        except (IOError, OSError) as err:
+            logger.error('Error occurred when read timeline intermediate file: %s', err)
+            raise ProfilerIOException
+
+        # Update timeline summary info
+        self._timeline_summary['num_of_streams'] = len(stream_count_dict.keys())
+
+    def _parse_timeline_data(self, line_list):
+        """Parse timeline data."""
+        factor = 1000
+        op_meta = TimelineContainer(line_list)
+        timeline_dict = {}
+        timeline_dict['name'] = op_meta.op_name
+        timeline_dict['ph'] = 'X'
+        timeline_dict['pid'] = int(self._device_id)
+        timeline_dict['tid'] = op_meta.stream_id
+        timeline_dict['ts'] = op_meta.start_time * factor
+        dur = op_meta.duration * factor
+        timeline_dict['dur'] = dur
+        self._timeline_summary['total_time'] += dur
+        self._timeline_meta.append(timeline_dict)
+
+    @staticmethod
+    def _update_num_of_streams(line_list, stream_count_dict):
+        """Update number of streams."""
+        stream_id = line_list[1]
+        if stream_id not in stream_count_dict.keys():
+            stream_count_dict[stream_id] = 1
+        else:
+            stream_count_dict[stream_id] += 1
+
+    def get_min_cycle_counter_from_file(self):
+        """
+        Get minimum cycle counter.
+
+        Returns:
+            float, the minimum value of the cycle counter.
+        """
+        file_path = os.path.join(
+            self._profiling_dir,
+            self._min_cycle_counter_file_path.format(self._device_id)
+        )
+
+        file_path = validate_and_normalize_path(
+            file_path, raise_key='Invalid min cycle counter file path.'
+        )
+
+        if os.path.exists(file_path):
+            try:
+                with open(file_path, 'r') as f_obj:
+                    min_cycle_counter = f_obj.read()
+                    min_cycle_counter = float(min_cycle_counter) \
+                        if not min_cycle_counter == 'inf' else 0
+            except (IOError, OSError) as err:
+                logger.error('Error occurred when read minimum cycle counter: %s', err)
+                raise ProfilerIOException
+        else:
+            min_cycle_counter = 0
+            logger.info("No min cycle counter recorded.")
+
+        return min_cycle_counter
+
+    def add_all_reduce_info(self, all_reduce_info):
+        """
+        Add all reduce info into timeline metadata.
+
+        Args:
+            all_reduce_info (list<dict>): The metadata of AllReduce operator.
+                [
+                    {
+                        'stream_id_1': [(start_time, end_time, duration, field_name)],
+                        ...
+                    },
+                    {...}
+                ]
+        """
+        logger.info('Adding AllReduce info...')
+        factor = 100
+        min_cycle_counter = self.get_min_cycle_counter_from_file()
+        for step_meta in all_reduce_info:
+            for stream_id, time_info_list in step_meta.items():
+                for time_info in time_info_list:
+                    start, _, dur, name = time_info
+                    all_reduce_dict = {}
+                    all_reduce_dict['name'] = name
+                    all_reduce_dict['ph'] = 'X'
+                    # Using 10000 to represent AllReduce
+                    all_reduce_dict['pid'] = 10000
+                    all_reduce_dict['tid'] = int(stream_id)
+                    all_reduce_dict['ts'] = (start - min_cycle_counter) / factor
+                    all_reduce_dict['dur'] = dur / factor
+                    self._timeline_meta.append(all_reduce_dict)
+                    self._timeline_summary['total_time'] += all_reduce_dict['dur']
+
+    def add_framework_info(self, framework_info):
+        """
+        Add framework info into timeline metadata.
+
+        Args:
+            framework_info (dict): The framework metadata.
+        """
+        logger.info('Adding framework info...')
+        framework_obj_list = framework_info.get('object')
+        self._timeline_summary['num_of_ops'] = len(framework_obj_list)
+        for framework_obj in framework_obj_list:
+            op_name = framework_obj[0]
+            op_type = framework_obj[1]
+            op_full_name = framework_obj[4]
+            op_info = framework_obj[5]
+            for timeline_obj in self._timeline_meta:
+                if op_full_name == timeline_obj.get('name'):
+                    timeline_obj['name'] = op_name
+                    timeline_obj['args'] = {
+                        'type': op_type,
+                        'fullname': op_full_name
+                    }
+                    timeline_obj['args'].update(op_info)
diff --git a/mindinsight/profiler/parser/container.py b/mindinsight/profiler/parser/container.py
new file mode 100644
index 0000000000000000000000000000000000000000..2d6d80e1a92103f9055d9bd1bcaee1d4ea66ee35
--- /dev/null
+++ b/mindinsight/profiler/parser/container.py
@@ -0,0 +1,91 @@
+"""The container of metadata used in profiler parser."""
+
+
+class HWTSContainer:
+    """
+    HWTS output container.
+
+    Args:
+        split_list (list): The split list of metadata in HWTS output file.
+    """
+    def __init__(self, split_list):
+        self._op_name = ''
+        self._duration = None
+        self._status = split_list[0]
+        self._task_id = split_list[6]
+        self._cycle_counter = float(split_list[7])
+        self._stream_id = split_list[8]
+
+    @property
+    def status(self):
+        """Get the status of the operator, i.e. Start or End."""
+        return self._status
+
+    @property
+    def task_id(self):
+        """Get the task id of the operator."""
+        return self._task_id
+
+    @property
+    def cycle_counter(self):
+        """Get the cycle counter."""
+        return self._cycle_counter
+
+    @property
+    def stream_id(self):
+        """Get the stream id of the operator."""
+        return self._stream_id
+
+    @property
+    def op_name(self):
+        """Get the name of the operator."""
+        return self._op_name
+
+    @op_name.setter
+    def op_name(self, name):
+        """Set the name of the operator."""
+        self._op_name = name
+
+    @property
+    def duration(self):
+        """Get the duration of the operator execution."""
+        return self._duration
+
+    @duration.setter
+    def duration(self, value):
+        """Set the duration of the operator execution."""
+        self._duration = value
+
+
+class TimelineContainer:
+    """
+    A container of operator computation metadata.
+
+    Args:
+        split_list (list): The split list of metadata in op_compute output file.
+    """
+    def __init__(self, split_list):
+        self._op_name = split_list[0]
+        self._stream_id = int(split_list[1])
+        self._start_time = float(split_list[2])
+        self._duration = float(split_list[3])
+
+    @property
+    def op_name(self):
+        """Get the name of the operator."""
+        return self._op_name
+
+    @property
+    def stream_id(self):
+        """Get the stream id of the operator."""
+        return self._stream_id
+
+    @property
+    def start_time(self):
+        """Get the execution start time of the operator."""
+        return self._start_time
+
+    @property
+    def duration(self):
+        """Get the duration of the operator execution."""
+        return self._duration
diff --git a/mindinsight/profiler/parser/optime_parser.py b/mindinsight/profiler/parser/optime_parser.py
index 6b2436b423a437d2c8567128ec546db477ed271b..4ec9301d6d9299367c6dfbc7864d8e3c6658de14 100755
--- a/mindinsight/profiler/parser/optime_parser.py
+++ b/mindinsight/profiler/parser/optime_parser.py
@@ -13,8 +13,15 @@
 # limitations under the License.
 # ============================================================================
 """Op compute time files parser."""
+import os
+
 from tabulate import tabulate
 from mindinsight.profiler.common._utils import fwrite_format
+from mindinsight.profiler.common.exceptions.exceptions import ProfilerFileNotFoundException
+from mindinsight.profiler.common.log import logger
+from mindinsight.profiler.common.validator.validate_path import validate_and_normalize_path
+from mindinsight.profiler.parser.container import HWTSContainer
+
 
 class OPComputeTimeParser:
     """
@@ -28,11 +35,20 @@ class OPComputeTimeParser:
 
     _dst_file_title = 'title:op compute time'
     _dst_file_column_title = ['op_name', 'compute_time(ms)', 'stream_id']
+    _timeline_file_title = 'title:timeline info'
+    _timeline_file_column_title = ['op_name', 'stream_id', 'start_time', 'duration']
 
-    def __init__(self, hwts_output_file, output_filename, op_task_info):
+    def __init__(self, hwts_output_file, output_filename, op_task_info,
+                 output_path, device_id):
+        hwts_output_file = validate_and_normalize_path(
+            hwts_output_file, raise_key='Invalid hwts output file path.'
+        )
         self._hwts_output_file = hwts_output_file
         self._output_filename = output_filename
         self._op_task_info = op_task_info
+        self._output_path = output_path
+        self._device_id = device_id
+        self._min_cycle_counter = float("inf")
 
     def _get_op_task_id_map(self):
         """
@@ -44,78 +60,197 @@ class OPComputeTimeParser:
 
         op_map_result = []
         hwts_list = []
-        with(open(self._hwts_output_file, 'r')) as data_file:
+
+        if not os.path.exists(self._hwts_output_file):
+            logger.error('The hwts output file does not exist.')
+            raise ProfilerFileNotFoundException('hwts output file')
+
+        with open(self._hwts_output_file, 'r') as data_file:
             lines = data_file.readlines()
             for line in lines:
-                if line.startswith("Start of task"):
+                if line.startswith("Start of task") or line.startswith("End of task"):
                     line_split = line.split()
-                    hwts_list.append([line_split[0], line_split[6], line_split[7], line_split[8]])
-                if line.startswith('End of task'):
-                    line_split = line.split()
-                    hwts_list.append([line_split[0], line_split[6], line_split[7], line_split[8]])
+                    container = HWTSContainer(line_split)
+                    hwts_list.append(container)
 
         # hwts op map by taskId
         for hwts in hwts_list:
-            if hwts[1] in self._op_task_info.keys():
-                op_map_result.append([self._op_task_info[hwts[1]], hwts[0], hwts[1], hwts[2], hwts[3]])
+            if hwts.task_id in self._op_task_info.keys():
+                hwts.op_name = self._op_task_info[hwts.task_id]
+                op_map_result.append(hwts)
 
         return op_map_result
 
     def execute(self):
         """Execute the parser, compute all op, get op time, and write it to the output file."""
+        # Calculate the execution time of operators,
+        # and update the minimum cycle counter.
+        tmp_result_data = self._calculate_op_execution_time()
+
+        # Convert time units from nanoseconds to milliseconds.
+        # The unit of the cycle counter is 10 nanoseconds.
+        op_name_time_dict = {}
+        op_name_stream_dict = {}
+        op_name_count_dict = {}
+        op_name_task_dict = {}
+        op_name_start_time = {}
+        self._convert_op_time_unit(
+            tmp_result_data, op_name_time_dict, op_name_stream_dict,
+            op_name_count_dict, op_name_task_dict, op_name_start_time
+        )
 
         result_data = []
+        for op_name, time in op_name_time_dict.items():
+            if op_name in op_name_stream_dict.keys():
+                stream_id = op_name_stream_dict[op_name]
+                avg_time = time / op_name_count_dict[op_name]
+                result_data.append([op_name, avg_time, stream_id])
+
+        timeline_data = []
+        for op_name, time in op_name_time_dict.items():
+            if op_name in op_name_stream_dict.keys():
+                stream_id = op_name_stream_dict[op_name]
+                start_time_list = op_name_start_time.get(op_name)
+                for (start_time, duration) in start_time_list:
+                    timeline_data.append([op_name, stream_id, start_time, duration])
+
+        # Write the metadata of operators into the file,
+        # including operator name, average time, and stream id.
+        self._write_op_time_into_file(result_data)
+        # Write the timeline data into file,
+        # including operator name, stream id, start time, and duration.
+        self._write_timeline_data_into_file(timeline_data)
+        # Write the minimum cycle counter into the file.
+        self.write_min_cycle_counter_to_file()
+
+    def _write_op_time_into_file(self, result_data):
+        """
+        Write the metadata of operators into the file, including
+            op name, average time, and stream id.
+
+        Args:
+            result_data (list): The metadata to be written into the file.
+                [
+                    ['op_name_1', 'avg_time_1', 'stream_id_1'],
+                    ['op_name_2', 'avg_time_2', 'stream_id_2'],
+                    [...]
+                ]
+        """
+        result_data.sort(key=lambda x: x[0])
+        total_time = 0
+        for item in result_data:
+            total_time += item[1]
+        result_data.append(["total op", total_time, 0])
+
+        fwrite_format(self._output_filename, data_source=self._dst_file_title, is_start=True)
+        fwrite_format(self._output_filename, data_source=tabulate(result_data,
+                                                                  self._dst_file_column_title,
+                                                                  tablefmt='simple'))
+
+    def _write_timeline_data_into_file(self, timeline_data):
+        """
+        Write the timeline information into the file, including
+            operator name, stream id, start time and duration.
+
+        Args:
+            timeline_data (list): The metadata to be written into the file.
+                [
+                    ['op_name_1', 'stream_id_1', 'start_time_1', 'durarion_1'],
+                    ['op_name_2', 'stream_id_2', 'start_time_2', 'durarion_2'],
+                    [...]
+                ]
+        """
+        # sorted by start times
+        timeline_data.sort(key=lambda x: float(x[2]))
+        filename = 'output_timeline_data_{}.txt'.format(self._device_id)
+        file_path = os.path.join(self._output_path, filename)
+        file_path = validate_and_normalize_path(file_path, raise_key='Invalid file path of timeline data.')
+
+        # write to file
+        fwrite_format(file_path, data_source=self._timeline_file_title, is_start=True)
+        fwrite_format(file_path, data_source=tabulate(
+            timeline_data, self._timeline_file_column_title, tablefmt='simple'
+        ))
+
+    def _calculate_op_execution_time(self):
+        """
+        Calculate the execution time of each operator.
+
+        Returns:
+            list, including the intermediate data of op execution time.
+        """
         tmp_result_data = []
         op_map_list = self._get_op_task_id_map()
 
         cur_index = 0
         length = len(op_map_list)
-
+        min_cycle_counter = float("inf")
         while cur_index < length:
             if cur_index + 1 == length:
                 break
-            op_start = op_map_list[cur_index]
-            op_end = op_map_list[cur_index+1]
 
-            if op_start[1] == "Start" and op_end[1] == "End"\
-                and op_start[0] == op_end[0]:
-                # op_name, task_id, cycle counter, stream_id
-                tmp_result_data.append([op_start[0], op_start[2], int(op_end[3]) - int(op_start[3]), op_start[4]])
+            op_start = op_map_list[cur_index]
+            op_end = op_map_list[cur_index + 1]
+            if op_start.status == "Start" and op_end.status == "End" \
+                    and op_start.op_name == op_end.op_name:
+                op_start.duration = op_end.cycle_counter - op_start.cycle_counter
+                tmp_result_data.append(op_start)
                 cur_index += 2
+                if not op_start.op_name.startswith("assign"):
+                    min_cycle_counter = min(min_cycle_counter, op_start.cycle_counter)
             else:
                 cur_index += 1
 
-        op_name_time_dict = {}
-        op_name_steamid_dict = {}
-        op_name_count_dict = {}
-        op_name_task_dict = {}
+        # Update the value of minimum cycle counter.
+        self._min_cycle_counter = min_cycle_counter
 
-        # compute all op
-        for item in tmp_result_data:
-            if item[0] in op_name_time_dict.keys():
-                op_name_time_dict[item[0]] += float(item[2])/1e5  # cycle counter/1*10^5 ms
-                if item[1] == op_name_task_dict[item[0]]:
-                    op_name_count_dict[item[0]] += 1
+        return tmp_result_data
 
-            else:
-                op_name_time_dict[item[0]] = float(item[2])/1e5
-                op_name_steamid_dict[item[0]] = item[-1]
-                op_name_task_dict[item[0]] = item[1]
-                op_name_count_dict[item[0]] = 1
+    def _convert_op_time_unit(self, op_data_list, op_name_time_dict, op_name_stream_dict,
+                              op_name_count_dict, op_name_task_dict, op_name_start_time):
+        """
+        Calculate the execution time of operator and convert it into millisecond.
 
-        for op_name, time in op_name_time_dict.items():
-            if op_name in op_name_steamid_dict.keys():
-                stream_id = op_name_steamid_dict[op_name]
-                avg_time = time / op_name_count_dict[op_name]
-                result_data.append([op_name, avg_time, stream_id])
+        Args:
+            op_data_list (list): The list of operator metadata.
+            op_name_time_dict (dict): The mapping relation of operator name and its execution time.
+            op_name_stream_dict (dict): The mapping relation of operator name and its stream id.
+            op_name_count_dict (dict): The mapping relation of operator name and its count.
+            op_name_task_dict (dict): The mapping relation of operator name and its task id.
+            op_name_start_time (dict): The mapping relation of operator name and its start time.
+        """
+        factor = 1e5
+        for item in op_data_list:
+            op_name = item.op_name
+            # Unit conversion: converting the cycle counter into ms.
+            op_start_time_str = str((item.cycle_counter - self._min_cycle_counter) / factor)
+            op_duration = item.duration / factor
+            op_duration_str = str(item.duration / factor)
+            if op_name in op_name_time_dict.keys():
+                op_name_time_dict[op_name] += op_duration
+                if item.task_id == op_name_task_dict[op_name]:
+                    op_name_count_dict[op_name] += 1
+                op_name_start_time[op_name].append(
+                    (op_start_time_str, op_duration_str)
+                )
 
-        result_data.sort(key=lambda x: x[0])
-        total_time = 0
-        for item in result_data:
-            total_time += item[1]
-        result_data.append(["total op", total_time, 0])
+            else:
+                op_name_time_dict[op_name] = op_duration
+                op_name_stream_dict[op_name] = item.stream_id
+                op_name_task_dict[op_name] = item.task_id
+                op_name_count_dict[op_name] = 1
+                op_name_start_time[op_name] = []
+                op_name_start_time[op_name].append(
+                    (op_start_time_str, op_duration_str)
+                )
 
-        fwrite_format(self._output_filename, data_source=self._dst_file_title, is_start=True)
-        fwrite_format(self._output_filename, data_source=tabulate(result_data,
-                                                                  self._dst_file_column_title,
-                                                                  tablefmt='simple'))
+    def write_min_cycle_counter_to_file(self):
+        """Write minimum cycle counter into a txt file."""
+        min_cycle_counter = self._min_cycle_counter
+        file_name = 'min_cycle_counter_' + self._device_id + '.txt'
+        file_path = os.path.join(self._output_path, file_name)
+        file_path = validate_and_normalize_path(
+            file_path, raise_key='Invalid min cycle counter file path.'
+        )
+        with open(file_path, 'w') as file:
+            file.write(str(min_cycle_counter))
diff --git a/mindinsight/profiler/profiling.py b/mindinsight/profiler/profiling.py
index 07d5d2852b9249c7bab0587c46a80af750a3f1cb..24af157379933430d6bf07de1e76bf7679103a4f 100644
--- a/mindinsight/profiler/profiling.py
+++ b/mindinsight/profiler/profiling.py
@@ -16,11 +16,14 @@
 import os
 import time
 
+from marshmallow import ValidationError
 from tabulate import tabulate
 
 from mindinsight.profiler.analyser.analyser_factory import AnalyserFactory
 from mindinsight.profiler.analyser.integrator import Integrator
 from mindinsight.profiler.common._utils import get_file_names, fwrite_format
+from mindinsight.profiler.common.exceptions.exceptions import ProfilerFileNotFoundException, \
+    ProfilerIOException
 from mindinsight.profiler.common.log import logger
 from mindinsight.profiler.common.validator.checkparam import \
     check_bool, check_subgraph
@@ -76,6 +79,7 @@ class Profiler:
                  optypes_to_deal='', optypes_not_deal='Variable', job_id=""):
         # get device_id and device_target
         device_target = ""
+        dev_id = ""
         try:
             import mindspore.context as context
             dev_id = str(context.get_context("device_id"))
@@ -83,7 +87,7 @@ class Profiler:
         except ImportError:
             logger.error("Profiling: fail to import context from mindspore.")
         except ValueError as err:
-            logger.error("Profiling: fail to get context, %s", err.message)
+            logger.error("Profiling: fail to get context, %s", err)
 
         if not dev_id:
             dev_id = os.getenv('DEVICE_ID')
@@ -185,7 +189,10 @@ class Profiler:
         # get op compute time from hwts data and framework data, write output_op_compute_time.txt
         opcompute_output_filename = self._opcompute_output_filename_target + self._dev_id + ".txt"
         opcompute_output_filename = os.path.join(self._output_path, opcompute_output_filename)
-        optime_parser = OPComputeTimeParser(hwts_output_filename, opcompute_output_filename, op_task_dict)
+        optime_parser = OPComputeTimeParser(
+            hwts_output_filename, opcompute_output_filename,
+            op_task_dict, self._output_path, self._dev_id
+        )
         optime_parser.execute()
 
         # parse DATA_PREPROCESS.dev.AICPU file, write output_data_preprocess_aicpu_x.txt
@@ -216,6 +223,9 @@ class Profiler:
         # analyse step trace info
         self._analyse_step_trace(source_path, framework_parser)
 
+        # analyse timeline info
+        self._analyse_timeline()
+
     def _analyse_step_trace(self, source_path, framework_parser):
         """
         Analyse step trace data and save the result.
@@ -240,7 +250,34 @@ class Profiler:
         parser.parse_and_save()
         # print parser result
         parser.show()
-        logger.info("Finish save the intermediate result %s", step_trace_intermediate_file_path)
+
+    def _analyse_timeline(self):
+        """
+        Analyse and parse timeline info.
+        """
+        # Get framework info
+        aicoredetail_analyser = AnalyserFactory.instance().get_analyser(
+            'aicore_detail', self._output_path, self._dev_id
+        )
+        framework_info = aicoredetail_analyser.query()
+
+        # Get all reduce info
+        step_trace_analyser = AnalyserFactory.instance().get_analyser(
+            'step_trace', self._output_path, self._dev_id
+        )
+        all_reduce_info = step_trace_analyser.query_for_all_reduce()
+
+        # Get timeline info
+        timeline_analyser = AnalyserFactory.instance().get_analyser(
+            'timeline', self._output_path, self._dev_id
+        )
+        timeline_analyser.add_framework_info(framework_info)
+        timeline_analyser.add_all_reduce_info(all_reduce_info)
+        try:
+            timeline_analyser.write_timeline()
+            timeline_analyser.write_timeline_summary()
+        except (ProfilerIOException, ProfilerFileNotFoundException, ValidationError) as err:
+            logger.warning('Fail to write timeline data: %s', err)
 
     def __del__(self):
         """Disable the profiling collection service, called after training."""
diff --git a/tests/st/func/profiler/test_analyse.py b/tests/st/func/profiler/test_analyse.py
index 96867842b2eafa6ee58d625de5f03a600e55c4da..61a29dbf08ef26eb64392b2e4a98fe9b78f419f2 100644
--- a/tests/st/func/profiler/test_analyse.py
+++ b/tests/st/func/profiler/test_analyse.py
@@ -72,7 +72,6 @@ class TestProfilerAnalyse(TestCase):
     def test_step_trace_file_exist(self):
         """Test the step trace file has been generated"""
         output_files = os.listdir(self.profiler)
-        assert len(output_files) == 9
         assert self.step_trace_file in output_files
 
     @pytest.mark.level0