diff --git a/qfluentwidgets/__init__.py b/qfluentwidgets/__init__.py
index e390a64de0b52ce1a882b5aa998aaad222453475..0e984978659838f7cc38f1c69160bf2e72ef49d9 100644
--- a/qfluentwidgets/__init__.py
+++ b/qfluentwidgets/__init__.py
@@ -12,7 +12,7 @@ Examples are available at https://github.com/zhiyiYo/PyQt-Fluent-Widgets/tree/ma
 :license: GPLv3, see LICENSE for more details.
 """
 
-__version__ = "0.6.5"
+__version__ = "0.6.6"
 
 from .components import *
 from .common import *
diff --git a/qfluentwidgets/components/widgets/combo_box.py b/qfluentwidgets/components/widgets/combo_box.py
index 0ec3124e8949a867dbc10e7c7800fba02f0a8607..1604461ee00812597f9dd466dde754fd0316389e 100644
--- a/qfluentwidgets/components/widgets/combo_box.py
+++ b/qfluentwidgets/components/widgets/combo_box.py
@@ -31,10 +31,7 @@ class ComboItem:
         """
         self.text = text
         self.userData = userData
-        if icon:
-            self._icon = QIcon(icon) if isinstance(icon, str) else icon
-        else:
-            self._icon = QIcon()
+        self.icon = icon
 
     @property
     def icon(self):
@@ -43,6 +40,13 @@ class ComboItem:
 
         return self._icon.icon()
 
+    @icon.setter
+    def icon(self, ico: Union[str, QIcon, FluentIconBase]):
+        if ico:
+            self._icon = QIcon(ico) if isinstance(ico, str) else ico
+        else:
+            self._icon = QIcon()
+
 
 class ComboBoxBase(QObject):
     """ Combo box base """
@@ -75,7 +79,7 @@ class ComboBoxBase(QObject):
 
         return super().eventFilter(obj, e)
 
-    def addItem(self, text, icon: Union[str, QIcon, FluentIconBase] = None, userData=None):
+    def addItem(self, text: str, icon: Union[str, QIcon, FluentIconBase] = None, userData=None):
         """ add item
 
         Parameters
@@ -127,7 +131,7 @@ class ComboBoxBase(QObject):
     def currentIndex(self):
         return self._currentIndex
 
-    def setCurrentIndex(self, index):
+    def setCurrentIndex(self, index: int):
         """ set current index
 
         Parameters
@@ -151,6 +155,12 @@ class ComboBoxBase(QObject):
 
         return self.items[self.currentIndex()].text
 
+    def currentData(self):
+        if not 0 <= self.currentIndex() < len(self.items):
+            return None
+
+        return self.items[self.currentIndex()].userData
+
     def setCurrentText(self, text):
         """ set the current text displayed in combo box,
         text should be in the item list
@@ -186,17 +196,36 @@ class ComboBoxBase(QObject):
             self.setText(text)
 
     def itemData(self, index: int):
-        """ Returns the data for the given role in the given index in the combobox """
+        """ Returns the data in the given index """
         if not 0 <= index < len(self.items):
             return None
 
         return self.items[index].userData
 
+    def itemText(self, index: int):
+        """ Returns the text in the given index """
+        if not 0 <= index < len(self.items):
+            return ''
+
+        return self.items[index].text
+
+    def itemIcon(self, index: int):
+        """ Returns the icon in the given index """
+        if not 0 <= index < len(self.items):
+            return QIcon()
+
+        return self.items[index].icon
+
     def setItemData(self, index: int, value):
-        """ Sets the data role for the item on the given index in the combobox to the specified value """
+        """ Sets the data role for the item on the given index """
         if 0 <= index < len(self.items):
             self.items[index].userData = value
 
+    def setItemIcon(self, index: int, icon: Union[str, QIcon, FluentIconBase]):
+        """ Sets the data role for the item on the given index """
+        if 0 <= index < len(self.items):
+            self.items[index].icon = icon
+
     def findData(self, data):
         """ Returns the index of the item containing the given data, otherwise returns -1 """
         for i, item in enumerate(self.items):
@@ -212,6 +241,43 @@ class ComboBoxBase(QObject):
 
         return self.items.index(self.itemMap[text])
 
+    def clear(self):
+        """ Clears the combobox, removing all items. """
+        self.items.clear()
+        self.itemMap.clear()
+        self._currentIndex = -1
+
+    def count(self):
+        """ Returns the number of items in the combobox """
+        return len(self.items)
+
+    def insertItem(self, index: int, text: str, icon: Union[str, QIcon, FluentIconBase] = None, userData=None):
+        """ Inserts item into the combobox at the given index. """
+        if not text or text in self.itemMap:
+            return
+
+        item = ComboItem(text, icon, userData)
+        self.items.insert(index, item)
+        self.itemMap[text] = item
+
+        if index <= self.currentIndex():
+            self._onItemClicked(self.currentIndex() + 1)
+
+    def insertItems(self, index: int, texts: Iterable[str]):
+        """ Inserts items into the combobox, starting at the index specified. """
+        pos = index
+        for text in texts:
+            if not text or text in self.itemMap:
+                continue
+
+            item = ComboItem(text)
+            self.items.insert(pos, item)
+            self.itemMap[text] = item
+            pos += 1
+
+        if index <= self.currentIndex():
+            self._onItemClicked(self.currentIndex() + pos - index)
+
     def _closeComboMenu(self):
         if not self.dropMenu:
             return
diff --git a/setup.py b/setup.py
index 6a9ebbd2923985ef1f1c874a5f664832bb718a80..39cf8ff9a344c4922af87919a46a4627a9e242b2 100644
--- a/setup.py
+++ b/setup.py
@@ -6,7 +6,7 @@ with open('README.md', encoding='utf-8') as f:
 
 setuptools.setup(
     name="PyQt-Fluent-Widgets",
-    version="0.6.5",
+    version="0.6.6",
     keywords="pyqt fluent widgets",
     author="zhiyiYo",
     author_email="shokokawaii@outlook.com",