以吐火罗语文献的被发现和解读为线索 ,结合语言学、考古学、体质人类学乃至遗传学的最新研究成果 ,认为吐火罗人是最古老的原始印欧民族之一 ,他们操一种属印欧语系西支 Centum语的语言 ,在体质上也表现出典型的原始印欧人种的特征。只是由于各支吐火罗人各自的发展道路不同以及所处的地理、文化环境的差异 ,从而最终在各地以不同民族的面目出现在以后的历史舞台上 Taking the discovery and interpretation of the Tocharian language as a clue and combining with the latest research results in linguistics, archeology, physical anthropology and even genetics, it is believed that Tocharian is one of the oldest primitive Indo-European peoples who practice A language that belongs to the Centum language of the Indo-West Indo-European family also shows typical features of the primitive Indo-European ethnics. It is only because of the differences in the respective development paths and the geographical and cultural environments in which they are involved, that eventually they will appear in later stages of history in different ethnic groups in different places