Yuguo, from Mongolia, lost his father when he was very young. His mother Liuxia was not able to raise him as a heavy drinker. With social support, she sent Yuguo to Wuxi for free education. Liuxia is depressed all day long, and she finds sustenance of missing Yuguo in reindeer and wine. One winter holiday after many years, Yuguo returns to his hometown, the Evenki settlement deep in the Greater Khingan mountains. At that time, he is no longer the boy who just left home, but a thirteen-year-old teenager. Facing alcoholic mother, poetic uncle, pure people from the tribe, familiar yet strange forest, Yuguo, who grew up in the city, doesn’t know what to do. In the snow-laden mountains of Aoluguya, northeast of Inner Mongolia, the film chronicles their brief time together. Yuguo and His Mother is the second documentary of Gu Tao’s Evenki trilogy.