土族史是西北少数民族史研究中的一个重要领域。长期以来,土族族源问题一直受到民族史和地方史学界的关注,曾提出过各种观点,但至今未形成定论。本文介绍了19世纪80年代俄国人波塔宁在民和三川地区的调查,并结合史籍记载和国内研究成果,对土族族源研究中的几个问题做了补充讨论。 The history of Tu nationality is an important area in the history of ethnic minorities in Northwest China. For a long time, the issue of the Tu nationality source has always been the concern of the ethnic and local history scholars. Various opinions have been put forward, but so far no conclusion has been reached. This paper introduces the survey of Putin in Russian and Sanchuan areas in the 1880s and makes a supplementary discussion on several issues in the study of the Tu nationality sources based on historical records and domestic research results.