diff --git a/util/gconv/gconv_struct.go b/util/gconv/gconv_struct.go
index 461a6c7da..57fadd7c9 100644
--- a/util/gconv/gconv_struct.go
+++ b/util/gconv/gconv_struct.go
@@ -220,12 +220,6 @@ func doStruct(
 	if len(usedParamsKeyOrTagNameMap) == len(paramsMap) {
 		return nil
 	}
-	// If the length of `paramsMap` is less than the number of fields, then loop based on `paramsMap`
-	if len(paramsMap) < len(cachedStructInfo.FieldConvertInfos) {
-		return bindStructWithLoopParamsMap(
-			paramsMap, pointerElemReflectValue, paramKeyToAttrMap, usedParamsKeyOrTagNameMap, cachedStructInfo,
-		)
-	}
 	return bindStructWithLoopFieldInfos(
 		paramsMap, pointerElemReflectValue, paramKeyToAttrMap, usedParamsKeyOrTagNameMap, cachedStructInfo,
 	)
@@ -247,84 +241,6 @@ func setOtherSameNameField(
 	return nil
 }
 
-func bindStructWithLoopParamsMap(
-	paramsMap map[string]any,
-	structValue reflect.Value,
-	paramKeyToAttrMap map[string]string,
-	usedParamsKeyOrTagNameMap map[string]struct{},
-	cachedStructInfo *structcache.CachedStructInfo,
-) (err error) {
-	var (
-		fieldName       string
-		cachedFieldInfo *structcache.CachedFieldInfo
-		fieldValue      reflect.Value
-		paramKey        string
-		paramValue      any
-		ok              bool
-	)
-	for paramKey, paramValue = range paramsMap {
-		if _, ok = usedParamsKeyOrTagNameMap[paramKey]; ok {
-			continue
-		}
-		cachedFieldInfo = cachedStructInfo.GetFieldInfo(paramKey)
-		if cachedFieldInfo != nil {
-			fieldName = cachedFieldInfo.FieldName()
-			// already converted using its field name?
-			// the field name has the more priority than tag name.
-			_, ok = usedParamsKeyOrTagNameMap[fieldName]
-			if ok && cachedFieldInfo.IsField {
-				continue
-			}
-			fieldValue = cachedFieldInfo.GetFieldReflectValueFrom(structValue)
-			if err = bindVarToStructField(
-				fieldValue, paramValue, cachedFieldInfo, paramKeyToAttrMap,
-			); err != nil {
-				return err
-			}
-			// handle same field name in nested struct.
-			if len(cachedFieldInfo.OtherSameNameField) > 0 {
-				if err = setOtherSameNameField(cachedFieldInfo, paramValue, structValue, paramKeyToAttrMap); err != nil {
-					return err
-				}
-			}
-			usedParamsKeyOrTagNameMap[fieldName] = struct{}{}
-			continue
-		}
-
-		// fuzzy matching.
-		for _, cachedFieldInfo = range cachedStructInfo.FieldConvertInfos {
-			fieldName = cachedFieldInfo.FieldName()
-			if _, ok = usedParamsKeyOrTagNameMap[fieldName]; ok {
-				continue
-			}
-			if !strings.EqualFold(
-				cachedFieldInfo.RemoveSymbolsFieldName,
-				utils.RemoveSymbols(paramKey)) {
-				continue
-			}
-			fieldValue = cachedFieldInfo.GetFieldReflectValueFrom(structValue)
-			if paramValue != nil {
-				if err = bindVarToStructField(
-					fieldValue, paramValue, cachedFieldInfo, paramKeyToAttrMap,
-				); err != nil {
-					return err
-				}
-				// handle same field name in nested struct.
-				if len(cachedFieldInfo.OtherSameNameField) > 0 {
-					if err = setOtherSameNameField(
-						cachedFieldInfo, paramValue, structValue, paramKeyToAttrMap,
-					); err != nil {
-						return err
-					}
-				}
-			}
-			usedParamsKeyOrTagNameMap[cachedFieldInfo.FieldName()] = struct{}{}
-			break
-		}
-	}
-	return nil
-}
-
 func bindStructWithLoopFieldInfos(
 	paramsMap map[string]any,
 	structValue reflect.Value,
@@ -346,10 +262,6 @@ func bindStructWithLoopFieldInfos(
 			if paramValue, ok = paramsMap[fieldTag]; !ok {
 				continue
 			}
-			if _, ok = usedParamsKeyOrTagNameMap[fieldTag]; ok {
-				matched = true
-				break
-			}
 			fieldValue = cachedFieldInfo.GetFieldReflectValueFrom(structValue)
 			if err = bindVarToStructField(
 				fieldValue, paramValue, cachedFieldInfo, paramKeyToAttrMap,
diff --git a/util/gconv/gconv_z_unit_issue_test.go b/util/gconv/gconv_z_unit_issue_test.go
index 55b6149ad..7e80fe30a 100644
--- a/util/gconv/gconv_z_unit_issue_test.go
+++ b/util/gconv/gconv_z_unit_issue_test.go
@@ -13,6 +13,7 @@ import (
 	"time"
 
 	"github.com/gogf/gf/v2/container/gtype"
+	"github.com/gogf/gf/v2/container/gvar"
 	"github.com/gogf/gf/v2/encoding/gjson"
 	"github.com/gogf/gf/v2/frame/g"
 	"github.com/gogf/gf/v2/internal/json"
@@ -783,3 +784,24 @@ func Test_Issue3868(t *testing.T) {
 		}
 	})
 }
+
+// https://github.com/gogf/gf/issues/3903
+func Test_Issue3903(t *testing.T) {
+	gtest.C(t, func(t *gtest.T) {
+		type TestA struct {
+			UserId int `json:"UserId"   orm:"user_id"   `
+		}
+		type TestB struct {
+			TestA
+			UserId int `json:"NewUserId"  description:""`
+		}
+		var input = map[string]interface{}{
+			"user_id": gvar.New(100, true),
+		}
+		var a TestB
+		err := gconv.StructTag(input, &a, "orm")
+		t.AssertNil(err)
+		t.Assert(a.TestA.UserId, 100)
+		t.Assert(a.UserId, 100)
+	})
+}
diff --git a/util/gconv/internal/structcache/structcache_cached_struct_info.go b/util/gconv/internal/structcache/structcache_cached_struct_info.go
index 70fd1bf44..245107376 100644
--- a/util/gconv/internal/structcache/structcache_cached_struct_info.go
+++ b/util/gconv/internal/structcache/structcache_cached_struct_info.go
@@ -59,16 +59,17 @@ func (csi *CachedStructInfo) AddField(field reflect.StructField, fieldIndexes []
 }
 
 func (csi *CachedStructInfo) makeOrCopyCachedInfo(
-	field reflect.StructField,
-	fieldIndexes []int,
-	priorityTags []string,
+	field reflect.StructField, fieldIndexes []int, priorityTags []string,
 	cachedFieldInfo *CachedFieldInfo,
 	currTagOrFieldName string,
 ) (newFieldInfo *CachedFieldInfo) {
 	if cachedFieldInfo == nil {
 		// If the field is not cached, it creates a new one.
 		newFieldInfo = csi.makeCachedFieldInfo(field, fieldIndexes, priorityTags)
-	} else if cachedFieldInfo.StructField.Type != field.Type {
+		newFieldInfo.IsField = currTagOrFieldName == field.Name
+		return
+	}
+	if cachedFieldInfo.StructField.Type != field.Type {
 		// If the types are different, some information needs to be reset.
 		newFieldInfo = csi.makeCachedFieldInfo(field, fieldIndexes, priorityTags)
 	} else {