diff --git a/configs/det/ch_PP-OCRv3/ch_PP-OCRv3_det_cml.yml b/configs/det/ch_PP-OCRv3/ch_PP-OCRv3_det_cml.yml
index f4824b6891d9b7a1c811c8e647c3b29f07e248bd..ca9b0f749230ad92ad7dad185f8ff19d27cf216e 100644
--- a/configs/det/ch_PP-OCRv3/ch_PP-OCRv3_det_cml.yml
+++ b/configs/det/ch_PP-OCRv3/ch_PP-OCRv3_det_cml.yml
@@ -197,6 +197,7 @@ Train:
     drop_last: false
     batch_size_per_card: 8
     num_workers: 4
+
 Eval:
   dataset:
     name: SimpleDataSet
@@ -217,3 +218,8 @@ Eval:
     - ToCHWImage:
     - KeepKeys:
         keep_keys: ['image', 'shape', 'polys', 'ignore_tags']
+  loader:
+    shuffle: False
+    drop_last: False
+    batch_size_per_card: 1 # must be 1
+    num_workers: 2