diff --git a/controller/user.go b/controller/user.go
index 1fc83c99e..9e09c51da 100644
--- a/controller/user.go
+++ b/controller/user.go
@@ -287,11 +287,37 @@ func GetAllUsers(c *gin.Context) {
 	return
 }
 
+// SearchUsers handles a request to find users by keyword, group, or external identifier filters and returns paginated results.
+// It requires at least one search parameter (keyword, group, or any of the external ID/email filters) and responds with an error if none are provided.
+// On success it populates the page query with matching users and total count and returns that page info.
 func SearchUsers(c *gin.Context) {
 	keyword := c.Query("keyword")
 	group := c.Query("group")
+	filters := map[string]string{
+		"github_id":   c.Query("github_id"),
+		"discord_id":  c.Query("discord_id"),
+		"oidc_id":     c.Query("oidc_id"),
+		"wechat_id":   c.Query("wechat_id"),
+		"email":       c.Query("email"),
+		"telegram_id": c.Query("telegram_id"),
+		"linux_do_id": c.Query("linux_do_id"),
+	}
+
+	// 检查是否至少有一个搜索条件
+	hasFilter := keyword != "" || group != ""
+	for _, v := range filters {
+		if v != "" {
+			hasFilter = true
+			break
+		}
+	}
+	if !hasFilter {
+		common.ApiErrorMsg(c, "at least one search parameter is required")
+		return
+	}
+
 	pageInfo := common.GetPageQuery(c)
-	users, total, err := model.SearchUsers(keyword, group, pageInfo.GetStartIdx(), pageInfo.GetPageSize())
+	users, total, err := model.SearchUsers(keyword, group, filters, pageInfo.GetStartIdx(), pageInfo.GetPageSize())
 	if err != nil {
 		common.ApiError(c, err)
 		return
@@ -1293,4 +1319,4 @@ func UpdateUserSetting(c *gin.Context) {
 		"success": true,
 		"message": "设置已更新",
 	})
-}
+}
\ No newline at end of file
diff --git a/model/user.go b/model/user.go
index 395daa0b5..f76cc4d63 100644
--- a/model/user.go
+++ b/model/user.go
@@ -185,6 +185,11 @@ func GetMaxUserId() int {
 	return user.Id
 }
 
+// GetAllUsers retrieves a paginated list of users and the total number of users.
+// It returns results that include soft-deleted records, ordered by id descending,
+// and omits the password field from the returned user objects.
+// The pageInfo parameter provides the page size and start index for pagination.
+// Returns the slice of users, the total user count, and any error encountered.
 func GetAllUsers(pageInfo *common.PageInfo) (users []*User, total int64, err error) {
 	// Start transaction
 	tx := DB.Begin()
@@ -219,7 +224,10 @@ func GetAllUsers(pageInfo *common.PageInfo) (users []*User, total int64, err err
 	return users, total, nil
 }
 
-func SearchUsers(keyword string, group string, startIdx int, num int) ([]*User, int64, error) {
+// SearchUsers searches for users matching the provided keyword, group, and exact-match filters.
+// The function accepts a keyword (performs LIKE match on username, email, and display_name; if the keyword is numeric it also matches id), a group to scope results, a map of exact-match filters (allowed keys: "github_id", "discord_id", "oidc_id", "wechat_id", "email", "telegram_id", "linux_do_id"), and pagination parameters startIdx and num.
+// It returns the matched users, the total number of records matching the query (ignoring pagination), and an error if the operation fails.
+func SearchUsers(keyword string, group string, filters map[string]string, startIdx int, num int) ([]*User, int64, error) {
 	var users []*User
 	var total int64
 	var err error
@@ -238,32 +246,46 @@ func SearchUsers(keyword string, group string, startIdx int, num int) ([]*User,
 	// 构建基础查询
 	query := tx.Unscoped().Model(&User{})
 
-	// 构建搜索条件
-	likeCondition := "username LIKE ? OR email LIKE ? OR display_name LIKE ?"
+	// 允许的过滤字段白名单
+	allowedFields := map[string]bool{
+		"github_id":   true,
+		"discord_id":  true,
+		"oidc_id":     true,
+		"wechat_id":   true,
+		"email":       true,
+		"telegram_id": true,
+		"linux_do_id": true,
+	}
 
-	// 尝试将关键字转换为整数ID
-	keywordInt, err := strconv.Atoi(keyword)
-	if err == nil {
-		// 如果是数字，同时搜索ID和其他字段
-		likeCondition = "id = ? OR " + likeCondition
-		if group != "" {
-			query = query.Where("("+likeCondition+") AND "+commonGroupCol+" = ?",
-				keywordInt, "%"+keyword+"%", "%"+keyword+"%", "%"+keyword+"%", group)
-		} else {
+	// 应用精确匹配过滤器
+	for field, value := range filters {
+		if value != "" && allowedFields[field] {
+			query = query.Where(field+" = ?", value)
+		}
+	}
+
+	// 构建搜索条件
+	if keyword != "" {
+		likeCondition := "username LIKE ? OR email LIKE ? OR display_name LIKE ?"
+
+		// 尝试将关键字转换为整数ID
+		keywordInt, err := strconv.Atoi(keyword)
+		if err == nil {
+			// 如果是数字，同时搜索ID和其他字段
+			likeCondition = "id = ? OR " + likeCondition
 			query = query.Where(likeCondition,
 				keywordInt, "%"+keyword+"%", "%"+keyword+"%", "%"+keyword+"%")
-		}
-	} else {
-		// 非数字关键字，只搜索字符串字段
-		if group != "" {
-			query = query.Where("("+likeCondition+") AND "+commonGroupCol+" = ?",
-				"%"+keyword+"%", "%"+keyword+"%", "%"+keyword+"%", group)
 		} else {
+			// 非数字关键字，只搜索字符串字段
 			query = query.Where(likeCondition,
 				"%"+keyword+"%", "%"+keyword+"%", "%"+keyword+"%")
 		}
 	}
 
+	if group != "" {
+		query = query.Where(commonGroupCol+" = ?", group)
+	}
+
 	// 获取总数
 	err = query.Count(&total).Error
 	if err != nil {
@@ -928,4 +950,4 @@ func RootUserExists() bool {
 		return false
 	}
 	return true
-}
+}
\ No newline at end of file