Superficial gastric cancer, i.e. early gastric cancer, refers to cancerous tissue lesions confined to the gastric mucosa and submucosa, regardless of the size of the lesions and the presence or absence of lymph node metastasis. Early gastric cancer is superficial and can be categorized into sunken type, elevated type and flat type. Its clinical manifestations are not obvious, and it may be asymptomatic or may have nausea and vomiting, dyspepsia, abdominal pain, fatigue, etc. Early gastric cancer has a better prognosis, but it is easy to be developed into advanced gastric cancer if not treated in time and the commonly used treatments for it are surgical treatments, such as endoscopic mucous membrane resection and peeling surgery. Early stomach cancer patients should go to the hospital for further examination and treatment under the guidance of professional doctors, and they should also develop good dietary habits, avoid spicy and stimulating food, lead a regular life and relax their mind.