Sun Damei's real name has never been exposed. Her stage name is Sun Damei, and she is a famous Northeast duet actress. She is good at dressing up ugly, and often wears a cotton-padded jacket, two braids and big flowers, appearing in the image of eight eyebrows and big teeth. Her performance is humorous and often makes the audience laugh, so she is deeply loved by the audience.

Northeast Errenzhuan is a unique folk art form, belonging to China's walking and singing school. With the popularity of northeast culture, the duet is gradually known to the people all over the country. Its expression is generally a man and a woman, holding a fan or handkerchief, singing and dancing while walking, and presenting a funny story to the audience with the cooperation of the two.

The renamed paragraphs of Errenzhuan include Daxiang, Answer, Sprinkling Water in Front of the Horse, etc. If you want to speak a duet well, you need not only a steady typhoon, but also a good voice. Singing is an important part of duet performance. Errenzhuan's singing is loud and rough, and the lyrics are humorous. Yan Xuejing, Xiao Shenyang and Shen Chunyang are all duets.

Different from the traditional duet, Sun Damei's performance is more innovative. She was ugly and attracted everyone's attention. On the stage, she made everyone laugh with her performance. In private, she is actually a pretty girl. With the widespread spread of duet, Sun Damei's name is also known by more and more people.