diff --git a/pymilvus/orm/types.py b/pymilvus/orm/types.py
index eebbb50bc..af9d9e7c8 100644
--- a/pymilvus/orm/types.py
+++ b/pymilvus/orm/types.py
@@ -121,7 +121,7 @@ def infer_dtype_bydata(data: Any):
             failed = True
         if not failed:
             d_type = dtype_str_map.get(type_str, DataType.UNKNOWN)
-            return DataType.FLOAT_VECTOR if is_numeric_datatype(d_type) else DataType.UNKNOWN
+            return DataType.FLOAT_VECTOR if is_numeric_datatype(d_type) else DataType.ARRAY
 
     if d_type == DataType.UNKNOWN:
         try: