Investigation on the level of psychosocial adaptation of breast cancer patients after operation; The significance of the topic selection is to improve their psychosocial adaptability and improve their quality of life. Female patients undergoing radical mastectomy have poor social and psychological adaptability and poor quality of life. The overall situation of patients has a great influence on their psychological and social adaptability. Strengthening patients' health guidance and psychological intervention can improve their cognitive level of diseases, improve their psychological and social adaptability, and thus improve their quality of life. Breast cancer patients are mainly women, and men only account for about 1% of the total number of breast cancer patients. Breast cancer is one of the most common malignant tumors that plague women's physical and mental health all over the world. Clinical data show that the incidence of breast cancer in China has increased significantly in recent years, which is related to the continuous deepening of women's participation in social work and economic level, and the increasing psychological pressure and work intensity.