Abstract: In order to determine the influence of superfine grinding on quality characteristic of jackfruit powder,jackfruit coarse powder dried by vacuum freeze and explosion puffing combination drying was used as the raw material in this study. The results showed that the superfine grinding time had little influence on particle size,the superfine grinding time for 5 minutes can meet requirement of powder particle size. The water solution index and water holding capacity of jackfruit powder increased,while the total carotenoids and vitamin C decreased with superfine grinding time; the jackfruit powder dried by vacuum freeze and explosion puffing combination drying had good liquidity as well as small hygroscopicity,which can meet the demand of enterprise and not easy to bond.