diff --git a/src/models/RoleLog.lua b/src/models/RoleLog.lua
index 156c851..edaf9d2 100644
--- a/src/models/RoleLog.lua
+++ b/src/models/RoleLog.lua
@@ -508,7 +508,7 @@ local MethodType = {
 		mission_id	= true, --关卡ID
 		mission_herolist = true, -- 英雄ID，排序以玩家出战设置为准，示例：[111, 222, 333, 444, 555]
 		mission_success_rate = true, -- 大成功几率
-		mission_reward = true, -- 获得奖励，建议使用json格式记录。示例：{ itemid1: 1,  itemid2: 3,  itemid3: 5}
+		mission_reward = "json", -- 获得奖励，建议使用json格式记录。示例：{ itemid1: 1,  itemid2: 3,  itemid3: 5}
 		mission_result = true, -- 战斗结果(0-无效，1-胜利，2-失败)
 		mission_roundtime = true, -- 完成耗时（秒）
 	},
diff --git a/src/models/RolePlugin.lua b/src/models/RolePlugin.lua
index 1f27d19..6c0341b 100644
--- a/src/models/RolePlugin.lua
+++ b/src/models/RolePlugin.lua
@@ -356,13 +356,14 @@ function RolePlugin.bind(Role)
 			if not self:costDiamond(pms) then
 				return
 			end
-			itemCountT[ItemId.Diamond] = nil
 		end
 		for itemId, count in pairs(itemCountT) do
-			pms.itemId = itemId
-			pms.count = - count
-			self:addItem(pms)
-			self:itemDeltaEvent(pms)
+			if itemId ~= ItemId.Diamond then
+				pms.itemId = itemId
+				pms.count = - count
+				self:addItem(pms)
+				self:itemDeltaEvent(pms)
+			end
 		end
 		return true
 	end
--
libgit2 0.21.2