This film tells the story of Gao Daguan, the donkey county magistrate, who helps local people break the rumors about the ancient beast and protects peace. The film fully interprets Gao Daguan's life pattern through the description of his behavior, although he is a small person, but he has great love in his heart. The evil forces such as Lin Lao fabricated the legend of the ancient beast and conducted feudal sacrifices, and eventually suffered the consequences. In the battle of wits and courage with the villain, Gao Daguan contrasted good and evil, and finally Gao Daguan won a great victory. Although the film is based on the pursuit of the truth of the ancient beast, the details fully demonstrate Gao Daguan's spirit of never compromising in the face of difficulties, remaining calm in the face of danger, being resourceful and brave, and reflecting a strong sense of social responsibility and national pride. As a county magistrate, Gao Daguan's actions of not seeking rewards or fame and fortune are closely linked to the spirit of public welfare and selfless dedication, and also show his loyalty and courage to serve the people everywhere and for the people.