diff --git a/src/main/java/com/alibaba/fastjson/parser/deserializer/DefaultFieldDeserializer.java b/src/main/java/com/alibaba/fastjson/parser/deserializer/DefaultFieldDeserializer.java
index 83f3b0461d..3edc8de8b9 100644
--- a/src/main/java/com/alibaba/fastjson/parser/deserializer/DefaultFieldDeserializer.java
+++ b/src/main/java/com/alibaba/fastjson/parser/deserializer/DefaultFieldDeserializer.java
@@ -64,7 +64,9 @@ public void parseField(DefaultJSONParser parser, Object object, Type objectType,
             }
             if (fieldType != objectType) {
                 fieldType = FieldInfo.getFieldType(this.clazz, objectType, fieldType);
-                fieldValueDeserilizer = parser.getConfig().getDeserializer(fieldType);
+                if (fieldValueDeserilizer == null) {
+                    fieldValueDeserilizer = parser.getConfig().getDeserializer(fieldType);
+                }
             }
         }