diff --git a/lua/app/ui/bounty/bounty_main_ui.lua b/lua/app/ui/bounty/bounty_main_ui.lua
index 6bfbfc11..88e6a859 100644
--- a/lua/app/ui/bounty/bounty_main_ui.lua
+++ b/lua/app/ui/bounty/bounty_main_ui.lua
@@ -83,6 +83,19 @@ end
 
 function BountyMainUI:initPreviewReward()
 	self.previewReward = self.uiMap["bounty_main_ui.mid_node.preview"]
+	self.uiMap["bounty_main_ui.mid_node.preview.bg"]:addClickListener(function()
+		if self.rewardsContentSid then
+			return
+		end
+		if self.showPreviewRewardSid then
+			return
+		end
+		if self.previewRewardIndex >= self.scrollrectComp:getTotalCount() then
+			self:scrollToIndex(self.previewRewardIndex)
+		else
+			self:scrollToIndex(self.previewRewardIndex - self.rewardCellNum/2 + 1)
+		end
+	end)
 	self.previewRewardCellComp = self.uiMap["bounty_main_ui.mid_node.preview.bg.reward_cell"]:addLuaComponent(GConst.TYPEOF_LUA_CLASS.REWARD_CELL)
 	self.previewRewardLvTx = self.uiMap["bounty_main_ui.mid_node.preview.bg.lv_tx"]
 	self.previewRewardNumTx = self.uiMap["bounty_main_ui.mid_node.preview.bg.num_tx"]
@@ -379,7 +392,7 @@ function BountyMainUI:scrollToIndex(targetIndex)
 		self.rewardsContentSid = nil
 		if self.rewardsContentMaxY == nil then
 			local maxLv = DataManager.BountyData:getMaxLevel()
-			self.rewardsContentMaxY = maxLv*self.cellHeight - self.scrollrectViewport:getRectHeight()
+			self.rewardsContentMaxY = maxLv*self.cellHeight + self.scrollrectComp:getTopRecoveryOffset() + self.scrollrectComp:getDownRecoveryOffset() - self.scrollrectViewport:getRectHeight()
 		end
 		-- 最多移动6格,超过6格就先整体移动后再移动6格
 		local moveTimePerCell = 0.05