diff --git a/worldsrv/welfmgr.go b/worldsrv/welfmgr.go
index 3614cd7..7a331d9 100644
--- a/worldsrv/welfmgr.go
+++ b/worldsrv/welfmgr.go
@@ -2232,13 +2232,15 @@ func (this *WelfareMgr) ClearActivityNianData(p *Player) {
 	if p != nil && p.WelfData != nil && p.WelfData.NianData != nil {
 		p.WelfData.NianData = nil
 		//清除任务数据
-		for id, _ := range p.WelfData.Task {
-			data := srvdata.PBDB_TaskMgr.GetData(id)
-			if data == nil {
-				continue
-			}
-			if data.ActivityType == common.TaskActivityTypeNianEveryDay || data.ActivityType == common.TaskActivityTypeNian {
-				delete(p.WelfData.Task, id)
+		if p.WelfData.Task != nil {
+			for id, _ := range p.WelfData.Task {
+				data := srvdata.PBDB_TaskMgr.GetData(id)
+				if data == nil {
+					continue
+				}
+				if data.ActivityType == common.TaskActivityTypeNianEveryDay || data.ActivityType == common.TaskActivityTypeNian {
+					delete(p.WelfData.Task, id)
+				}
 			}
 		}
 	}