Square dance is a type of dance art, a dance created by the people. Because of different nationalities, regions, and groups, the dance forms of square dance are also different. Square dance is the largest subsystem in dance art. It is self-entertaining and performative. The performance form is relatively special. It is mostly a group dance involving many people in public places. Participants perform for the purpose of entertainment and exercise. The content is enthusiastic and cheerful, and it is a non-professional dance art performance. According to research by art historians, the earliest art form in human life is dance. Square dance originates from social life and occurs among the people. The masses are the creators and performers of square dance. Today's square dances use a variety of techniques from various dance types. Most of the participants in square dances are middle-aged and elderly people, and most of them are women.