diff --git a/backend/src/main/java/io/dataease/service/dataset/ExtractDataService.java b/backend/src/main/java/io/dataease/service/dataset/ExtractDataService.java
index 55bbf4d263..e252383830 100644
--- a/backend/src/main/java/io/dataease/service/dataset/ExtractDataService.java
+++ b/backend/src/main/java/io/dataease/service/dataset/ExtractDataService.java
@@ -491,7 +491,7 @@ public class ExtractDataService {
             case 1:
                 return "Date";
             case 2:
-                return "Long";
+                return "BigNumber";
             default:
                 return "String";
         }