Changzhou, Jiangsu Province has a non-heritage that is facing a dilemma in its development-comb. In a limited space, the film introduces the history of the comb, the production process and the challenges of the times. The structure is progressive and the theme is sublimated, paying tribute to the craftsman spirit and national intangible heritage in today's era. The "information visualization" scheme is specially used in the film, which shows the production process and special style of the comb different from the traditional documentary. In addition to the application of the traditional lens language "push, pull and pan", part of the film uses unmanned aerial vehicle shooting, which provides a different perspective for the picture atmosphere.