Stage Ⅰa2 stomach cancer is recommended to be treated by surgery, and then according to the condition, radiotherapy measures will be taken to inhibit the cancer cells. 1. Surgical treatment: if stomach cancer stage 1a2 has not developed to the middle stage, surgery is usually recommended to remove the mass completely as soon as possible. If the mass is growing continuously and causing pressure on the surrounding tissues and organs, surgery should be performed as soon as possible, which mainly includes lymph node dissection, combined organ removal and so on. 2. Radiotherapy: after surgery, it is necessary to decide whether chemotherapy is needed according to the condition of recovery, and platinum-based chemotherapeutic drugs can be used, such as oxaliplatin, carboplatin, cisplatin and so on, which are designed to inhibit the development of cancer cells. If local recurrence or distant metastasis is found after surgery, local radiotherapy can also be used. Stage I a2 gastric cancer patients should also pay attention to their diet, and try to take light and nutritious and easy to digest as the principle. After surgery, they should also go to the hospital for rechecking regularly to know the condition of recovery.