Yang Mi was born in Beijing. Because all three family members are surnamed Yang, which is the cubic of "Yang" (the result of power in mathematics is called power), he was named Yang Mi. Yang Mi was very naughty when he was a child. Other children learn piano, dancing and calligraphy, but she can't settle down when she learns anything, so her parents let her take part in a training class for young actors. It happened that Chen Jialin's "Tang" cast came to choose the actors, and 4-year-old Yang Mi was chosen to play Princess Xianyi in "Tang". The play won 1 1 Golden Eagle Award Excellent Dragon Series and 13 Flying Dragon Award Series. Later, 5-year-old Yang Mi played the daughter (played by Stephen Chow) in the Hong Kong film Su. 1992, "Monkey Baby" starring six-year-old children won the second prize of the 14th Flying Award for Children's TV Series. Yang Mi, who was only six years old, also left a deep impression on Li Xiaowan, the producer of Monkey Baby at that time. 1993 Yang Mi played Li Danyang Jr. in Li Danyang's MV Sichuan Girl in Military Uniforms, and won the gold medal in the first China Music and Television Competition 1993.