diff --git a/src/actions/HeroAction.lua b/src/actions/HeroAction.lua
index 49a0ab2..5e30f38 100644
--- a/src/actions/HeroAction.lua
+++ b/src/actions/HeroAction.lua
@@ -884,10 +884,12 @@ function _M.drawHeroRpc(agent, data)
 							end
 						end
 						-- 随机剔除up池中的角色
-						for k, v in ipairs(up_pool) do
-							if v == itemData.id then
-								ok = false
-								break
+						if up_pool then
+							for k, v in ipairs(up_pool) do
+								if v == itemData.id then
+									ok = false
+									break
+								end
 							end
 						end
 						if not ok then break end
--
libgit2 0.21.2