兀惹是古代黑龙江流域一个著名的民族,他来源于隋唐时的黑水靺鞨,活跃于辽金两代的政治舞台上;元明时进行了数次分化、迁徙,一直是东北大地上一个十分活跃的民族。辽代,兀惹人主要生活在黑龙江中下游,辽圣宗时一部分兀惹人被辽的统治者迁居到松花江上游“鸭子、混同两水间”,金以后大部分融合到汉族和女真族中去了。留居在原住地的称为“兀的改”(乌第改)。元代改称“斡者”、“斡拙”、“吾者”,明代称“兀者”、“兀狄哈”;大约元末明 Wujue is a famous nationality in the ancient Heilongjiang River basin. He originated from the Blackwater slugs in the Sui and Tang dynasties and was active in the political arena of the two generations of Liao and Jin dynasties. During the Yuan and Ming dynasties, he conducted several divisions and migrations, Active people. In the Liao dynasty, Wu dynasty mainly lived in the middle and lower reaches of Heilongjiang. When Liao Shengzong was a part of Wu Liao, the rulers of Liao were relocated to the upper reaches of the Songhua River, “ducks, mixed with the two rivers.” Most of his later integration with Han and Jurchen Go in. Remain in the original place called “change Wu” (Uddynia). The Yuan Dynasty was renamed as the “remuneration”, “humble”, “my person”, Ming Dynasty said “Wu”, “Wu Di”; about Yuan Dynasty