Objective To study the fresh-keeping performance of active polyvinyl alcohol packaging film for Cherry Tomatoes. Methods Three different films, the PE films, the PVA packaging films and the PVA active packaging films, were used to pack the cherry tomatoes. Sensory evaluation and determination of variations in weight loss, rotting rate, vitamin C content and total sugar content of cherry tomatoes were used to compare the fresh-keeping effects of the three different packaging films. Results The observation results indicated that all three kinds of packing films were suitable for packing cherry tomatoes and could extend the shelf life. The comparison of the indicators of cherry tomatoes packed by three different films suggested that PVA active packaging film was better in delaying the rotting of cherry tomatoes , decreasing the rate of deterioration, maintaining a high content of vitamin C and total sugar, and prolonging the shelf life. Conclusion Active polyvinyl alcohol packaging film could prolong the fresh-keeping period of cherry Tomatoes by six days, and has achieved very good preservation effect.