Abstract: [Abstract] Objective To explore the CT findings and differential diagnosis of gastric wall thickening.Methods The CT findings of 82 cases of gastric lesions confirmed by operation and pathology were analyzed retrospectively, compared with normal gastric wall thickness. And to the extent of gastric wall thickness, morphology to identify the characteristics of the CT findings.Results Of the 82 cases 45 were with gastric carcinoma ,17with gastric lymphoma ,12 with gastric stromal tumor ,8 with gastritis. 82 cases with gastric wall thickening were divided into seven groups:group 1 banding type (30), group 2 mass type (14), group3 nodular type (5) ,group 4 ulcerative type (10) , group 5 irregular type (8) , group 6 coral type (0), group 7 mixed type (15).Conclusion CT findings of gastric wall thickening has important value in diagnosis of gastric lesions. With the extent of gastric wall thickening, morphology can be improved imaging diagnosis and differential diagnosis of gastric lesions.