The non-woven (12.7 g/m2) was modified by coating chitosan of concentration 1.0%, 1.5% and 2.0% respectively. The packaging bags were made from the modified and unmodified non-woven. The effects of chitosan concentration on the preservation of strawberries in packages were studied with the unmodified non-woven as the control group. The results showed that the modified non-woven bags had better preservation effect on strawberries compared with the unmodified at room temperature. The optimal was the modified non-woven with coating chitosan of 1.5%. During the storage period, strawberries experienced small sensory changes and low weight loss with the average hardness being 0.95 kg/cm2 and the average color difference being 6.995 NBS. Furthermore, soluble solid content was on the rise in the later period of storage.