The main things to pay attention to in early stage breast cancer are as follows: First, radical surgical resection as well as axillary lymph node dissection and sentinel lymph node biopsy should be done. Although breast cancer is in early stage, it is still necessary to carry out postoperative adjuvant radiotherapy, chemotherapy, endocrine therapy and targeted therapy according to the guideline, and specific indications, such as the indications of radiotherapy, chemotherapy, endocrine indications and targeted therapy, can be carried out in accordance with the instructions of the doctor. Third, it is necessary to do regular follow-up and postoperative dynamic observation, and to do comprehensive physical examination every 3 months within the first 2 years after surgery in order to find out recurrence and metastasis at an early stage. In conclusion, early breast cancer is a tumor with very good prognosis, but it is necessary to pay attention to timely postoperative adjuvant therapy and follow-up observation.