In China, the woman who is more than 40 year-old is called Da Ma, it has to be admitted that Da Ma is a powerful group, they own certain money at hand, we always hear about the news about them buying house everywhere or flying to the foreign country to buy the brands. The large group now has invaded the square at night, when the night comes, several groups of Da Ma go to the square, playing the music and dance until 9 o’clock. About few years ago, only few women would do this, but now, as the economy develops, people live a better life, so they begin to find entertainment. Da Ma have made the square dance popular, when we go out at night, we may find them dance everywhere. I think square dance is a good way for people to get exercise, they can keep fit.