Effects of grape seed extract (GSE) and chitosan (CTS) treatments on the postharvest quality of Yali pear (Pyrus bretschneideri Rehd.) fruit were investigated in this study.Both GSE and CTS are natural extracts.They could be applied to maintain postharvest quality without environment pollution and risk to public.Pears were immersed in GSE (0.1%; 1.0%; 1.5%),CTS (1.5%) and CTS (1.5%) plus GSE (0.5%) separately for 2 min with a negative pressure of 0.05 MPa and 3 min with normal pressure.Then the pears were air-dried,packaged,and stored at 20C,85%-95%RH for further observation.