diff --git a/internal/proxy/task.go b/internal/proxy/task.go
index 3a3e427aab8dcb760e39d57fa38182df75ca0108..d0d345d954af73164433046a548423eb862926ec 100644
--- a/internal/proxy/task.go
+++ b/internal/proxy/task.go
@@ -2636,10 +2636,11 @@ func (dct *describeCollectionTask) PreExecute(ctx context.Context) error {
 	dct.Base.MsgType = commonpb.MsgType_DescribeCollection
 	dct.Base.SourceID = Params.ProxyID
 
-	if err := ValidateCollectionName(dct.CollectionName); err != nil {
-		return err
+	if dct.CollectionID != 0 && len(dct.CollectionName) == 0 {
+		return nil
 	}
-	return nil
+
+	return ValidateCollectionName(dct.CollectionName)
 }
 
 func (dct *describeCollectionTask) Execute(ctx context.Context) error {
diff --git a/internal/proxy/task_test.go b/internal/proxy/task_test.go
index 61a7fae43c078e2e04d13bddcdab400ab5948b7f..149fb72b051d5fbd64a27ff90703b23255e9f31f 100644
--- a/internal/proxy/task_test.go
+++ b/internal/proxy/task_test.go
@@ -1311,7 +1311,14 @@ func TestDescribeCollectionTask(t *testing.T) {
 	err = task.PreExecute(ctx)
 	assert.NotNil(t, err)
 
+	// describe collection with id
+	task.CollectionID = 1
+	task.CollectionName = ""
+	err = task.PreExecute(ctx)
+	assert.NoError(t, err)
+
 	rc.Stop()
+	task.CollectionID = 0
 	task.CollectionName = collectionName
 	err = task.PreExecute(ctx)
 	assert.Nil(t, err)