In recent years, domestic animation films are committed to inheriting and carrying forward the traditional national culture. This article takes “Nezha”and “New Gods: Nezha Reborn”as an example to study the expression of traditional national culture from the perspective of cultural construction and audio-visual culture. It is concluded that the domestic animation focuses on the interpretation of the Chinese stories and the expression of the Chinese spirit, and uses the traditional elements to integrate the traditional culture with the modern context.