diff --git a/hsweb-commons/hsweb-commons-crud/src/main/java/org/hswebframework/web/crud/query/QueryHelperUtils.java b/hsweb-commons/hsweb-commons-crud/src/main/java/org/hswebframework/web/crud/query/QueryHelperUtils.java
index b754b32d8..c0fb5b312 100644
--- a/hsweb-commons/hsweb-commons-crud/src/main/java/org/hswebframework/web/crud/query/QueryHelperUtils.java
+++ b/hsweb-commons/hsweb-commons-crud/src/main/java/org/hswebframework/web/crud/query/QueryHelperUtils.java
@@ -17,7 +17,10 @@ public class QueryHelperUtils {
         for (int i = 0, len = col.length(); i < len; i++) {
             char c = col.charAt(i);
             if (Character.isUpperCase(c)) {
-                builder.append('_').append(Character.toLowerCase(c));
+                if (i != 0) {
+                    builder.append('_');
+                }
+                builder.append(Character.toLowerCase(c));
             } else {
                 builder.append(c);
             }
diff --git a/hsweb-commons/hsweb-commons-crud/src/test/java/org/hswebframework/web/crud/query/QueryHelperUtilsTest.java b/hsweb-commons/hsweb-commons-crud/src/test/java/org/hswebframework/web/crud/query/QueryHelperUtilsTest.java
index 6697442eb..c595c72b8 100644
--- a/hsweb-commons/hsweb-commons-crud/src/test/java/org/hswebframework/web/crud/query/QueryHelperUtilsTest.java
+++ b/hsweb-commons/hsweb-commons-crud/src/test/java/org/hswebframework/web/crud/query/QueryHelperUtilsTest.java
@@ -15,5 +15,16 @@ class QueryHelperUtilsTest {
 
         assertEquals("ruownum_",QueryHelperUtils.toHump("RUOWNUM_"));
 
+    }
+
+    @Test
+    void testToSnake(){
+
+        assertEquals("test_name",QueryHelperUtils.toSnake("testName"));
+
+        assertEquals("test_name",QueryHelperUtils.toSnake("TestName"));
+
+
+
     }
 }
\ No newline at end of file