This study investigates inscriptions and local chronicles of the Yuan Dynasty and aims to scrutinize Daotong’s lineage,ethnic identity,and career path.The paper argues that Daotong is the seventh generation grandson of Mongolian Muqali,the founding minister of Yeke Mongqol ulus,rather than Qoˇco Uighur.Daotong had been the government official in the region of the south of Yangtze,while was a mongol confucian and good learner of the Han culture.The biography of Daotong and relevant text descriptions reflected the history of ethnic communication and cultural intermingling of Yuan dynasty.