diff --git a/python/paddle/io/dataloader/batch_sampler.py b/python/paddle/io/dataloader/batch_sampler.py
index 190e9240900f8b44e169aa8198aaf55f342aa36b..2f235f408d625d3fa6e4535471d394adf6eeedab 100644
--- a/python/paddle/io/dataloader/batch_sampler.py
+++ b/python/paddle/io/dataloader/batch_sampler.py
@@ -133,6 +133,11 @@ class BatchSampler(Sampler):
         ), "batch_size should be a positive integer, but got {}".format(
             batch_size
         )
+        assert batch_size <= len(
+            self.sampler
+        ), "batch_size should not bigger than num of samples, but got {}".format(
+            batch_size
+        )
         self.batch_size = batch_size
         assert isinstance(
             drop_last, bool