This page is about the preparation of inorganic nanoparticle polyimide films by in-situ. Through this kind of doping, that changed the physical and chemical properties of polyimide. Experimental film by infrared, ultraviolet, SEM, electrical breakdown experiments, the surface resistivity, volume resistivity, and electrolum- inescent. The results show that the polyimide/ZnO films preparation by this kind of doping, hybrid inorganic nano-particles can reduce polyimide electrical breakdown field, the surface resistivity, volume resistivity, electroluminescent. It testified by electroluminescent show that the electroluminescent position from 561.8nm to 609.4nm. The redshift phenomenon occurs show that the apparent on polyimide trap turn lighter.