In this report, 1175 cases of resected gastric cancer were staged, followed up and statistincally calculated by using the international unifying new TNM staging system for gastric cancer. The prognostic value of the TNM staging system was also tested with relevant statistics. The results showed that:(1)the 5-year survival rates of Ⅰa、Ⅰb、Ⅱ、Ⅲa、Ⅲb and Ⅳ were 100%,84%,65%,43%,25% and 13% respectively; (2)The 5-year survival rates of the subgroups withing same stage were quite; (3)the analysys of correlation and regression between the new staging and the prognosis provided that correlation coefficient r equals to -0.990(Ｐ＜0.005), and regression coefficient b equals to -0.1345(Ｐ＜0.005). These results indicate that there is statistical identity beween the new TNM staging for gastric cancer and the prognosis, and certify the rationality for the new staging in application and its accuracy to reflect the prognosis.