The ethnic minority film contains rich national culture,has an important role in shaping the image of the country.With the development of the times,there have been a series of changes in the art of Chinese minority films,such as the awakening of the cultural self-consciousness,conforming to the trend of social change and turning to the documentary aesthetics style,etc.This series of changes reflect the multi-faceted characteristics of the national image in the new era of social change.This article attempts to interpret the national image in the new period from the three dimensions of narrative,theme and aesthetic,so as to explore how to optimize the national film creation in order to improve the ability of national cultural communication and the ability to express the image of the country under the background of globalization.