Gastric squamous carcinoma is squamous epithelial metaplasia, which is mainly a recurrent infection and squamification of the epithelium of the gastric mucosa, causing neoplastic lesions. Gastric squamous carcinoma is relatively rare among gastric cancers and is also rare in clinical practice. Some literature reports that it accounts for approximately 0.04%-0.7% of gastric cancers, and its prognosis is worse than adenocarcinoma. Gastric squamous carcinoma is mainly diagnosed by pathology, so clinical attention should be highly paid to biopsy, and for the tumor lesions found, further biopsy should be performed to clarify the diagnosis. Treatment methods for gastric squamous cancer include surgery, chemotherapy, radiotherapy, Chinese herbal medicine and immunotherapy. Because it is less sensitive to radiotherapy and chemotherapy than adenocarcinoma, its preferred treatment method is still surgery. The symptoms of gastric squamous carcinoma are not special compared with other gastric cancer symptoms, mainly the common symptoms of upper abdominal discomfort, nausea, belching, acid reflux and vomiting. Therefore, once these symptoms appear, you should go to the hospital for relevant examinations in time.