[目的]分析近20年间延边地区胃癌的发病特点。[方法]收集1990～2009年延边大学附属医院手术切除经病理确诊的胃癌1 024例,分析不同时期、不同年龄和性别胃癌的发病情况,并分析胃癌的临床病理学特点。[结果]20年间延边地区朝鲜族、汉族胃癌的检出率无明显差异,男性明显多于女性,胃癌高发年龄为60～69岁,好发部位为胃窦,组织学类型中低分化腺癌最多。早期胃癌的检出率为12.0%。在切除淋巴结的952例病例中,早期癌和进展期癌的淋巴结转移率分别为20.4%和66.0%(P<0.01)。[结论]近20年间延边地区胃癌的检出率在朝汉族之间无明显差异,本地区早期癌的检出率较高,胃癌的淋巴结转移与浸润深度和组织类型有关。 [Objective] To analyze the incidence of gastric cancer in Yanbian during the past 20 years. [Methods] A total of 1024 cases of gastric cancer diagnosed by pathology in the Affiliated Hospital of Yanbian University from 1990 to 2009 were collected. The incidence of gastric cancer of different ages, ages and genders were analyzed. The clinicopathological features of gastric cancer were analyzed. [Results] There was no significant difference in the prevalence of gastric cancer among Koreans and Han nationality in Yanbian during 20 years. The prevalence of gastric cancer was significantly higher in males than in females. The prevalence of gastric cancer was 60-69 years old. The predominant sites were gastric antrum, histologically poorly differentiated adenocarcinoma most. The detection rate of early gastric cancer was 12.0%. Among 952 cases of resected lymph nodes, the rates of lymph node metastasis in early and advanced cancers were 20.4% and 66.0%, respectively (P <0.01). [Conclusion] The detection rate of gastric cancer in Yanbian area has no significant difference between Han nationality in recent 20 years. The detection rate of early cancer in this area is high. The lymph node metastasis of gastric cancer is related to the depth of invasion and the type of tissue.