Abstract:To compare the detection rate, gender, ages, season and lesion location and complication between Han and Uyghur with duodenal ulcer in Xinjiang, and investigate the trend of the two nationality’s duodenal ulcer in recent 6 years and provide the evidence of prevention and treat for the difficult ethnic. Methods Clinical data of 31 205 cases of duodenal ulcer (2 266 Han and 222 Uyghur) from January 2013 to December 2018 was collected, then statistical analyzed the data by SPSS 19.0. Results There were significant difference in the detection rate of duodenal ulcer between Han and Uyghur (P < 0.01). The detection rate of duodenal ulcer of Han were sustainable declined to below 35.48% in recent 6 years, and Uyghur’s rate of duodenal ulcer were raised again after fall. The trend of detection rate of Hp was corresponded with duodenal ulcer between two nationality. The detection rate of duodenal ulcer were all higher in 26 ~ 35 age groups and the proportion of duodenal ulcer were highest in the 46 ~ 55 age groups between the two nationality. Uyghur’s detection rate of duodenal ulcer was higher than Han in the 46 ~ 55 age groups (P < 0.05), the proportion of the elder patients (>56) of Han duodenal ulcer were higher than Uyghur (P < 0.01). The detection rate of duodenal ulcer of Han was highest in the winter, and then Uyghur was in the Spring, the detection rate and the proportion of duodenal ulcer of Uyghur was higher than Han in the Spring (P < 0.01, P < 0.05). There were no difference in the gender, lesion location, complication rates and multiple ulcer between Han and Uyghur’s duodenal ulcer patients (P > 0.05), the rate of complex ulcer of Han’s was higher than Uyghur (P < 0.05). Conclusion The two nationality number of endoscopic procedures increased in recent 6 years, the detection rate of duodenal ulcer of Han were sustainable declined, and then the detection rate of duodenal ulcer of Uyghur was raised the high level again. The detection rate of Hp of Han was lower than Uyghur. Uyghur should be attention to happen with duodenal ulcer than Han in younger age, then Han should be attention to happen with duodenal ulcer after 56 years old. Uyghur’s the top season of detection rate of duodenal ulcer was winter and Han was Spring. The rate of complex ulcer of Han’s was higher than Uyghur.