Abstract: Body crisis is a common problem in the field of sports. On the surface, body crisis is caused by the unreasonable way of sports practice, but in nature, it is caused by sports alienation. Sport alienation occurs when people are enslaved by their desire and reverse the relationship between needs and desires in their pursuit of the value of physical exercise. To save people from body crisis and sport alienation, they must be unfettered from their desires. In the ethical sense, people's desires are an expression of their dislike of body, and indicate their loss of morality before their body. According to Marx's view that "human is Objective: existence", people can only be saved from their desires and body crisis and sports alienation can be eventually resolved when body reveals "truthfulness, kindness and beauty" through sports.

Key words: Body Crisis, Sport Alienation, Humanness, Ethics