The paper aims to study the effect of nucleating agent on the scratch resistance of BOPP for cigarette package. The effect of nucleating agent on BOPP for cigarette package with sorbitol and its compound on mechanical properties was studied by comparison experiment. The thermal seal of BOPP was modified, and then the scratch resistance was tested to indicate the scratch resistance through the change of the haze value of film on the plate. The sorbitol nucleating agent and its compound could apparently increase the mechanical properties of the film, especially in hardness, which was increased by nearly 22.7 % with the nucleating agent being 0.2%, and the haze value was decreased by 33.1% compared with those of vigin BOPP, and there was no much change on other properties, which was no need to make special adjustments to the production process. The nucleating agent researched for BOPP can increase the hardness of PP film and improve the scratch resistance of BOPP film.