The microcrystal cellulose (TMCC) was prepared from tomato peel pomace. The edible packaging films was prepared with TMCC as addictive by the casting method. FTIR, SEM and XRD were used to characterize the morphology of TMCC and the crystal structure of the films. The moisture absorption, mechanical, barrier and thermal sealing properties of the films were analyzed to research the effects of TMCC on packaging performance of matrix. According to the results, the TMCC prepared showed the morphology of short and thick rod (50~70 μm), with the longitudinal splitting on the surface. A good compatibility between TMCC and chitosan was revealed. the crystallinity of edible films increased, and the moisture absorption decreased with the addition of TMCC. The mechanical, barrier and thermal sealing properties of edible film were improved by addition of TMCC. The results revealed that when the mass fraction of TMCC was about 8%, the films showed the best packaging performance, and TMCC had a good effect on maintaining the mechanical properties of the material under the condition of high humidity.