diff --git a/pdseg/train.py b/pdseg/train.py
index 8738e43ccd95d631efa93e06111c8292ae6d6303..6166603c093a729c49a8a5b272bffe3435ecb96b 100644
--- a/pdseg/train.py
+++ b/pdseg/train.py
@@ -311,9 +311,6 @@ def train(cfg):
             exit(1)
 
         from tb_paddle import SummaryWriter
-
-        if os.path.exists(args.tb_log_dir):
-            shutil.rmtree(args.tb_log_dir)
         log_writer = SummaryWriter(args.tb_log_dir)
 
     global_step = 0