The neoadjuvant chemotherapy regimen for gastric cancer mainly includes SOX regimen or XELOX regimen. Usually, if the gastric cancer is in the progressive stage, such as T stage is T3 or T4, or N stage is positive, neoadjuvant chemotherapy may be used, which usually includes tegeo or tegeo combined with oxaliplatin, or capecitabine alone or capecitabine combined with oxaliplatin, to be treated with chemotherapy. 2-3 courses of chemotherapy, and after the course of treatment, the whole body examination will be done again to assess whether the stage of tumor has decreased. If examination is needed, abdominal MRI, whole abdomen enhanced CT and ultrasound endoscopy should be performed, focusing on T-stage and N-stage. If the tumor has shrunken, it can be operated again and radical tumor treatment can be performed, which can prolong the overall survival of the patient.