diff --git a/database/reward_system_upgrade.sql b/database/reward_system_upgrade.sql
index 01f8850..b885a5c 100644
--- a/database/reward_system_upgrade.sql
+++ b/database/reward_system_upgrade.sql
@@ -20,16 +20,52 @@ CREATE TABLE IF NOT EXISTS reward_record (
     INDEX idx_reward_type (reward_type)
 ) ENGINE=InnoDB DEFAULT CHARSET=utf8mb4 COLLATE=utf8mb4_unicode_ci COMMENT='奖励发放记录';
 
--- 2. 扩展奖励规则表
-ALTER TABLE reward_rule ADD COLUMN IF NOT EXISTS reward_exp INT DEFAULT 0 COMMENT '奖励经验值';
-ALTER TABLE reward_rule ADD COLUMN IF NOT EXISTS reward_title VARCHAR(50) COMMENT '奖励称号';
-ALTER TABLE reward_rule ADD COLUMN IF NOT EXISTS reward_privilege TEXT COMMENT '奖励特权JSON';
-ALTER TABLE reward_rule ADD COLUMN IF NOT EXISTS max_times_per_user INT DEFAULT 0 COMMENT '每用户最大获得次数(0=无限)';
-ALTER TABLE reward_rule ADD COLUMN IF NOT EXISTS total_budget INT DEFAULT 0 COMMENT '总预算积分(0=无限)';
-ALTER TABLE reward_rule ADD COLUMN IF NOT EXISTS used_budget INT DEFAULT 0 COMMENT '已使用预算';
-ALTER TABLE reward_rule ADD COLUMN IF NOT EXISTS trigger_count INT DEFAULT 0 COMMENT '触发次数';
-ALTER TABLE reward_rule ADD COLUMN IF NOT EXISTS start_time DATETIME COMMENT '生效开始时间';
-ALTER TABLE reward_rule ADD COLUMN IF NOT EXISTS end_time DATETIME COMMENT '生效结束时间';
+-- 2. 扩展奖励规则表（忽略已存在的列错误）
+-- 使用存储过程安全添加列
+DELIMITER //
+DROP PROCEDURE IF EXISTS add_column_if_not_exists//
+CREATE PROCEDURE add_column_if_not_exists()
+BEGIN
+    -- reward_exp
+    IF NOT EXISTS (SELECT * FROM INFORMATION_SCHEMA.COLUMNS WHERE TABLE_SCHEMA = DATABASE() AND TABLE_NAME = 'reward_rule' AND COLUMN_NAME = 'reward_exp') THEN
+        ALTER TABLE reward_rule ADD COLUMN reward_exp INT DEFAULT 0 COMMENT '奖励经验值';
+    END IF;
+    -- reward_title
+    IF NOT EXISTS (SELECT * FROM INFORMATION_SCHEMA.COLUMNS WHERE TABLE_SCHEMA = DATABASE() AND TABLE_NAME = 'reward_rule' AND COLUMN_NAME = 'reward_title') THEN
+        ALTER TABLE reward_rule ADD COLUMN reward_title VARCHAR(50) COMMENT '奖励称号';
+    END IF;
+    -- reward_privilege
+    IF NOT EXISTS (SELECT * FROM INFORMATION_SCHEMA.COLUMNS WHERE TABLE_SCHEMA = DATABASE() AND TABLE_NAME = 'reward_rule' AND COLUMN_NAME = 'reward_privilege') THEN
+        ALTER TABLE reward_rule ADD COLUMN reward_privilege TEXT COMMENT '奖励特权JSON';
+    END IF;
+    -- max_times_per_user
+    IF NOT EXISTS (SELECT * FROM INFORMATION_SCHEMA.COLUMNS WHERE TABLE_SCHEMA = DATABASE() AND TABLE_NAME = 'reward_rule' AND COLUMN_NAME = 'max_times_per_user') THEN
+        ALTER TABLE reward_rule ADD COLUMN max_times_per_user INT DEFAULT 0 COMMENT '每用户最大获得次数(0=无限)';
+    END IF;
+    -- total_budget
+    IF NOT EXISTS (SELECT * FROM INFORMATION_SCHEMA.COLUMNS WHERE TABLE_SCHEMA = DATABASE() AND TABLE_NAME = 'reward_rule' AND COLUMN_NAME = 'total_budget') THEN
+        ALTER TABLE reward_rule ADD COLUMN total_budget INT DEFAULT 0 COMMENT '总预算积分(0=无限)';
+    END IF;
+    -- used_budget
+    IF NOT EXISTS (SELECT * FROM INFORMATION_SCHEMA.COLUMNS WHERE TABLE_SCHEMA = DATABASE() AND TABLE_NAME = 'reward_rule' AND COLUMN_NAME = 'used_budget') THEN
+        ALTER TABLE reward_rule ADD COLUMN used_budget INT DEFAULT 0 COMMENT '已使用预算';
+    END IF;
+    -- trigger_count
+    IF NOT EXISTS (SELECT * FROM INFORMATION_SCHEMA.COLUMNS WHERE TABLE_SCHEMA = DATABASE() AND TABLE_NAME = 'reward_rule' AND COLUMN_NAME = 'trigger_count') THEN
+        ALTER TABLE reward_rule ADD COLUMN trigger_count INT DEFAULT 0 COMMENT '触发次数';
+    END IF;
+    -- start_time
+    IF NOT EXISTS (SELECT * FROM INFORMATION_SCHEMA.COLUMNS WHERE TABLE_SCHEMA = DATABASE() AND TABLE_NAME = 'reward_rule' AND COLUMN_NAME = 'start_time') THEN
+        ALTER TABLE reward_rule ADD COLUMN start_time DATETIME COMMENT '生效开始时间';
+    END IF;
+    -- end_time
+    IF NOT EXISTS (SELECT * FROM INFORMATION_SCHEMA.COLUMNS WHERE TABLE_SCHEMA = DATABASE() AND TABLE_NAME = 'reward_rule' AND COLUMN_NAME = 'end_time') THEN
+        ALTER TABLE reward_rule ADD COLUMN end_time DATETIME COMMENT '生效结束时间';
+    END IF;
+END//
+DELIMITER ;
+CALL add_column_if_not_exists();
+DROP PROCEDURE IF EXISTS add_column_if_not_exists;
 
 -- 3. 用户徽章表
 CREATE TABLE IF NOT EXISTS user_badge (