Gastric mesenchymal tumor of 1.3×1.5 cm can not be operated for the time being, but it needs regular review, observation and follow-up, and close monitoring of changes in the size of the tumor, and malignant enlargement requires immediate medical treatment and surgery. Generally speaking, the size of gastric mesenchymal tumor is relatively small, generally within 2cm does not need surgery, as long as the strict review, observation and follow-up can be. However, if the size of gastric mesothelioma is more than 2cm, it is recommended to perform aggressive surgical resection to avoid further development of gastric mesothelioma. Early stage mesothelioma can be removed by endoscopy, but advanced stage can only be removed by surgery. Patients with gastric mesothelioma need to actively cooperate with doctors for treatment, regular review, close monitoring, and timely medical treatment when stomach discomfort occurs, so as to avoid deterioration of the situation and delay of treatment.