diff --git a/internal/models/query.go b/internal/models/query.go
index e70da3e..347828f 100644
--- a/internal/models/query.go
+++ b/internal/models/query.go
@@ -1,6 +1,10 @@
 package models
 
-import "gorm.io/gorm"
+import (
+	"errors"
+
+	"gorm.io/gorm"
+)
 
 // GetAllModels 数据库迁移用模型列表
 func GetAllModels() []interface{} {
@@ -85,13 +89,6 @@ WHERE target_event.dispatch_outbox_id = 0`
 }
 
 func seedDefaultSyslogRules(db *gorm.DB) error {
-	var cnt int64
-	if err := db.Model(&SyslogRule{}).Count(&cnt).Error; err != nil {
-		return err
-	}
-	if cnt > 0 {
-		return nil
-	}
 	rows := []SyslogRule{
 		{
 			Name:               "默认-系统严重错误",
@@ -130,17 +127,39 @@ func seedDefaultSyslogRules(db *gorm.DB) error {
 			PolicyID:                0,
 		},
 	}
-	return db.Create(&rows).Error
+	for _, row := range rows {
+		var existing SyslogRule
+		err := db.Where("name = ?", row.Name).First(&existing).Error
+		if errors.Is(err, gorm.ErrRecordNotFound) {
+			if err := db.Create(&row).Error; err != nil {
+				return err
+			}
+			continue
+		}
+		if err != nil {
+			return err
+		}
+		if err := db.Model(&existing).Select(
+			"name",
+			"enabled",
+			"priority",
+			"device_name_contains",
+			"source_match",
+			"keyword_regex",
+			"message_regex",
+			"alert_name",
+			"severity_code",
+			"severity_mapping_json",
+			"resource_uid_extract_regex",
+			"policy_id",
+		).Updates(&row).Error; err != nil {
+			return err
+		}
+	}
+	return nil
 }
 
 func seedDefaultTrapRules(db *gorm.DB) error {
-	var cnt int64
-	if err := db.Model(&TrapRule{}).Count(&cnt).Error; err != nil {
-		return err
-	}
-	if cnt > 0 {
-		return nil
-	}
 	rows := []TrapRule{
 		{
 			Name:              "默认-Trap链路中断",
@@ -153,17 +172,35 @@ func seedDefaultTrapRules(db *gorm.DB) error {
 			PolicyID:          0,
 		},
 	}
-	return db.Create(&rows).Error
+	for _, row := range rows {
+		var existing TrapRule
+		err := db.Where("name = ?", row.Name).First(&existing).Error
+		if errors.Is(err, gorm.ErrRecordNotFound) {
+			if err := db.Create(&row).Error; err != nil {
+				return err
+			}
+			continue
+		}
+		if err != nil {
+			return err
+		}
+		if err := db.Model(&existing).Select(
+			"name",
+			"enabled",
+			"priority",
+			"oid_prefix",
+			"varbind_match_regex",
+			"alert_name",
+			"severity_code",
+			"policy_id",
+		).Updates(&row).Error; err != nil {
+			return err
+		}
+	}
+	return nil
 }
 
 func seedDefaultTrapDictionary(db *gorm.DB) error {
-	var cnt int64
-	if err := db.Model(&TrapDictionaryEntry{}).Count(&cnt).Error; err != nil {
-		return err
-	}
-	if cnt > 0 {
-		return nil
-	}
 	rows := []TrapDictionaryEntry{
 		{
 			Vendor:              "H3C",
@@ -192,5 +229,33 @@ func seedDefaultTrapDictionary(db *gorm.DB) error {
 			Enabled:             true,
 		},
 	}
-	return db.Create(&rows).Error
+	for _, row := range rows {
+		var existing TrapDictionaryEntry
+		err := db.Where("oid_prefix = ?", row.OIDPrefix).First(&existing).Error
+		if errors.Is(err, gorm.ErrRecordNotFound) {
+			if err := db.Create(&row).Error; err != nil {
+				return err
+			}
+			continue
+		}
+		if err != nil {
+			return err
+		}
+		if err := db.Model(&existing).Select(
+			"oid_prefix",
+			"vendor",
+			"o_id",
+			"name",
+			"title",
+			"description",
+			"severity_code",
+			"severity_mapping_json",
+			"parse_expression",
+			"recovery_message",
+			"enabled",
+		).Updates(&row).Error; err != nil {
+			return err
+		}
+	}
+	return nil
 }