diff --git a/internal/proxy/task.go b/internal/proxy/task.go
index 73c8c6a6a8..3bf0cf64eb 100644
--- a/internal/proxy/task.go
+++ b/internal/proxy/task.go
@@ -471,9 +471,9 @@ func (t *dropCollectionTask) OnEnqueue() error {
 }
 
 func (t *dropCollectionTask) PreExecute(ctx context.Context) error {
-	if err := validateCollectionName(t.CollectionName); err != nil {
-		return err
-	}
+	// No need to check collection name
+	// Validation shall be preformed in `CreateCollection`
+	// also permit drop collection one with bad collection name
 	return nil
 }
 
diff --git a/internal/proxy/task_alias.go b/internal/proxy/task_alias.go
index 7ded860764..6d78d1fdeb 100644
--- a/internal/proxy/task_alias.go
+++ b/internal/proxy/task_alias.go
@@ -179,10 +179,9 @@ func (t *DropAliasTask) OnEnqueue() error {
 }
 
 func (t *DropAliasTask) PreExecute(ctx context.Context) error {
-	collAlias := t.Alias
-	if err := ValidateCollectionAlias(collAlias); err != nil {
-		return err
-	}
+	// No need to check collection name
+	// Validation shall be preformed in `CreateCollection`
+	// also permit drop collection one with bad collection name
 	return nil
 }
 
diff --git a/internal/proxy/task_test.go b/internal/proxy/task_test.go
index 58b135391e..a424e57651 100644
--- a/internal/proxy/task_test.go
+++ b/internal/proxy/task_test.go
@@ -2554,13 +2554,10 @@ func Test_createIndexTask_PreExecute(t *testing.T) {
 func Test_dropCollectionTask_PreExecute(t *testing.T) {
 	dct := &dropCollectionTask{DropCollectionRequest: &milvuspb.DropCollectionRequest{
 		Base:           &commonpb.MsgBase{},
-		CollectionName: "0xffff", // invalid
+		CollectionName: "valid", // invalid
 	}}
 	ctx := context.Background()
 	err := dct.PreExecute(ctx)
-	assert.Error(t, err)
-	dct.DropCollectionRequest.CollectionName = "valid"
-	err = dct.PreExecute(ctx)
 	assert.NoError(t, err)
 }
 
diff --git a/internal/proxy/util.go b/internal/proxy/util.go
index f7eb76d6df..3f4fae8fd6 100644
--- a/internal/proxy/util.go
+++ b/internal/proxy/util.go
@@ -152,8 +152,6 @@ func validateNQLimit(limit int64) error {
 }
 
 func validateCollectionNameOrAlias(entity, entityType string) error {
-	entity = strings.TrimSpace(entity)
-
 	if entity == "" {
 		return merr.WrapErrParameterInvalidMsg("collection %s should not be empty", entityType)
 	}
diff --git a/internal/proxy/util_test.go b/internal/proxy/util_test.go
index 30f15251ec..da61b6d7e5 100644
--- a/internal/proxy/util_test.go
+++ b/internal/proxy/util_test.go
@@ -69,6 +69,7 @@ func TestValidateCollectionName(t *testing.T) {
 		"",
 		string(longName),
 		"中文",
+		"abc ",
 	}
 
 	for _, name := range invalidNames {
diff --git a/tests/python_client/milvus_client/test_milvus_client_alias.py b/tests/python_client/milvus_client/test_milvus_client_alias.py
index 7a5531daef..29fe594ca0 100644
--- a/tests/python_client/milvus_client/test_milvus_client_alias.py
+++ b/tests/python_client/milvus_client/test_milvus_client_alias.py
@@ -196,6 +196,7 @@ class TestMilvusClientAliasInvalid(TestMilvusClientV2Base):
 
     @pytest.mark.tags(CaseLabel.L1)
     @pytest.mark.parametrize("alias_name", ["12-s", "12 s", "(mn)", "中文", "%$#"])
+    @pytest.mark.skip(reason="https://github.com/milvus-io/milvus/pull/43064 change drop alias restraint")
     def test_milvus_client_drop_alias_invalid_alias_name(self, alias_name):
         """
         target: test create same alias to different collections
@@ -210,6 +211,7 @@ class TestMilvusClientAliasInvalid(TestMilvusClientV2Base):
                         check_task=CheckTasks.err_res, check_items=error)
 
     @pytest.mark.tags(CaseLabel.L1)
+    @pytest.mark.skip(reason="https://github.com/milvus-io/milvus/pull/43064 change drop alias restraint")
     def test_milvus_client_drop_alias_over_max_length(self):
         """
         target: test create same alias to different collections
diff --git a/tests/python_client/milvus_client/test_milvus_client_collection.py b/tests/python_client/milvus_client/test_milvus_client_collection.py
index c937b429f0..1162ebdb5d 100644
--- a/tests/python_client/milvus_client/test_milvus_client_collection.py
+++ b/tests/python_client/milvus_client/test_milvus_client_collection.py
@@ -88,7 +88,7 @@ class TestMilvusClientCollectionInvalid(TestMilvusClientV2Base):
         client = self._client()
         # 1. create collection
         collection_name = "  "
-        error = {ct.err_code: 0, ct.err_msg: "collection name should not be empty: invalid parameter"}
+        error = {ct.err_code: 1100, ct.err_msg: "Invalid collection name"}
         self.create_collection(client, collection_name, default_dim,
                                check_task=CheckTasks.err_res, check_items=error)
 
@@ -621,6 +621,7 @@ class TestMilvusClientDropCollectionInvalid(TestMilvusClientV2Base):
 
     @pytest.mark.tags(CaseLabel.L1)
     @pytest.mark.parametrize("name", ["12-s", "12 s", "(mn)", "中文", "%$#"])
+    @pytest.mark.skip(reason="https://github.com/milvus-io/milvus/pull/43064 change drop alias restraint")
     def test_milvus_client_drop_collection_invalid_collection_name(self, name):
         """
         target: test fast create collection normal case
diff --git a/tests/python_client/testcases/test_utility.py b/tests/python_client/testcases/test_utility.py
index b95f7fce40..ad3c71b941 100644
--- a/tests/python_client/testcases/test_utility.py
+++ b/tests/python_client/testcases/test_utility.py
@@ -197,7 +197,7 @@ class TestUtilityParams(TestcaseBase):
         """
         self._connect()
         error = {ct.err_code: 999, ct.err_msg: f"Invalid collection name: {invalid_name}"}
-        if invalid_name in [None, "", " "]:
+        if invalid_name in [None, ""]:
             error = {ct.err_code: 999, ct.err_msg: "collection name should not be empty"}
         self.utility_wrap.index_building_progress(collection_name=invalid_name,
                                                   check_task=CheckTasks.err_res, check_items=error)