diff --git a/pymilvus/client/entity_helper.py b/pymilvus/client/entity_helper.py
index 3e808d2a0..d66324610 100644
--- a/pymilvus/client/entity_helper.py
+++ b/pymilvus/client/entity_helper.py
@@ -46,6 +46,8 @@ def is_float_type(v: Any):
         for item in entity:
             if SciPyHelper.is_scipy_sparse(item):
                 return item.shape[0] == 1
+            if not isinstance(item, dict) and not isinstance(item, list):
+                return False
             pairs = item.items() if isinstance(item, dict) else item
             # each row must be a list of Tuple[int, float]. we allow empty sparse row
             for pair in pairs: