Abstract: In this experiment,four different kinds of paper bags were used to cover fruits on Punica granattum trees.When picking the fruits,the authors carried out a comparative experiment on such traits as damage rates of paper bags,damage rates of Punica granattum fruits and fruits quality.The resalts have shown that these four kinds of paper bags have made little difference in the soluble solid matter contents or rates of super-quality fruits,but there is a significant difference in damage rates of paper bags,especially significant between Pengcheng single-layer paper bags and Qinmu and Kai-xiang and Pengcheng double-layer paper bags.Therefore,it is suggesed that Pengcheng double-layer paper bags made in Xichang and Kaixiang double layer paper bags made in Shandong be used in production.