diff --git a/regression-test/pipeline/cloud_p0/conf/be_custom.conf b/regression-test/pipeline/cloud_p0/conf/be_custom.conf
index 9f85d1c98fac37..a84891beda8e62 100644
--- a/regression-test/pipeline/cloud_p0/conf/be_custom.conf
+++ b/regression-test/pipeline/cloud_p0/conf/be_custom.conf
@@ -7,7 +7,6 @@ push_worker_count_high_priority = 2
 streaming_load_max_mb = 107374182400
 clear_file_cache=true
 enable_file_cache=true
-mem_limit=50%
 #disable_storage_page_cache = true
 enable_file_cache_query_limit=true
 file_cache_max_file_segment_size=1048576
diff --git a/regression-test/pipeline/cloud_p1/conf/be_custom.conf b/regression-test/pipeline/cloud_p1/conf/be_custom.conf
index 1f4104304fcaf8..ae9efacf4883bb 100644
--- a/regression-test/pipeline/cloud_p1/conf/be_custom.conf
+++ b/regression-test/pipeline/cloud_p1/conf/be_custom.conf
@@ -7,7 +7,6 @@ push_worker_count_high_priority = 2
 streaming_load_max_mb = 107374182400
 clear_file_cache=true
 enable_file_cache=true
-mem_limit=50%
 #disable_storage_page_cache = true
 enable_file_cache_query_limit=true
 file_cache_max_file_segment_size=1048576