diff --git a/tools/infer/predict_det.py b/tools/infer/predict_det.py
index ba0adaee258096ea9970425cc05ca7a8f1cf08c4..1720369d01c42b41a9daea6907afe7714d97025b 100755
--- a/tools/infer/predict_det.py
+++ b/tools/infer/predict_det.py
@@ -35,6 +35,7 @@ logger = get_logger()
 
 class TextDetector(object):
     def __init__(self, args):
+        self.args = args
         self.det_algorithm = args.det_algorithm
         self.use_zero_copy_run = args.use_zero_copy_run
         pre_process_list = [{
diff --git a/tools/infer/utility.py b/tools/infer/utility.py
index 162f6cb757a6725e67a76409b6a50ae25b1a6dc8..b793254da688079c5a6782f2c071f1c3d8f992d4 100755
--- a/tools/infer/utility.py
+++ b/tools/infer/utility.py
@@ -33,6 +33,8 @@ def parse_args():
     parser.add_argument("--use_gpu", type=str2bool, default=True)
     parser.add_argument("--ir_optim", type=str2bool, default=True)
     parser.add_argument("--use_tensorrt", type=str2bool, default=False)
+    parser.add_argument("--use_fp16", type=str2bool, default=False)
+    parser.add_argument("--max_batch_size", type=int, default=10)
     parser.add_argument("--gpu_mem", type=int, default=8000)
 
     # params for text detector
@@ -46,7 +48,7 @@ def parse_args():
     parser.add_argument("--det_db_thresh", type=float, default=0.3)
     parser.add_argument("--det_db_box_thresh", type=float, default=0.5)
     parser.add_argument("--det_db_unclip_ratio", type=float, default=1.6)
-
+    parser.add_argument("--max_batch_size", type=int, default=10)
     # EAST parmas
     parser.add_argument("--det_east_score_thresh", type=float, default=0.8)
     parser.add_argument("--det_east_cover_thresh", type=float, default=0.1)
@@ -113,6 +115,11 @@ def create_predictor(args, mode, logger):
 
     if args.use_gpu:
         config.enable_use_gpu(args.gpu_mem, 0)
+        if args.use_tensorrt:
+            config.enable_tensorrt_engine(
+                precision_mode=AnalysisConfig.Precision.Half
+                if args.use_fp16 else AnalysisConfig.Precision.Float32,
+                max_batch_size=args.max_batch_size)
     else:
         config.disable_gpu()
         config.set_cpu_math_library_num_threads(6)