After gastric polyp surgery, you should fast for 6~8 hours, after that you can choose semi-liquid diet without abnormal symptoms. After gastric polyp surgery, in order to prevent stimulation of the gastric mucosa, it is necessary to fast for 6-8 hours, after 6-8 hours without abnormal symptoms, you can eat semi-liquid food. Diet is mainly based on the principle of mild and easy to digest, keep the principle of small meals, such as porridge, egg custard, fish soup, tofu brain, etc.. Avoid high-fiber foods, such as leeks and celery. Also avoid strong tea, coffee, wine, chili peppers and other stimulating foods. If there are no obvious discomfort symptoms as well as special requirements, you will be able to resume normal diet after 1~2 weeks. If there is any adverse effect after the gastric polyp surgery, you should go to the hospital in time to see a doctor to clarify the cause and then give targeted treatment.