Plastic surgery and beauty industry is a new industry, and has now become China’s fourth largest service industry. Plastic surgery techniqueis a kind of medical technology to reconstruct and shape of human body through surgery, medical equipment, drugs and other medical techniques with the goal of improving aesthetic ability. Although plastic surgery technology can help many beauty seekers to achieve gorgeous transformation, it may also cause safety problems such as personal injury, mental injury and economic injury to the patients. The above problems have caused clinical reflection on the technical ability, technical purpose and technical consequences of plastic surgery. This paper focuses on the medical ethics problems faced by the plastic surgery industry, such as the disproportionation of plastic surgery purposes and the mental damage caused by technology, and analyzes the reasons in order to promote the further development of China's plastic surgery industry.