Abstract: Using the methods of natural classifying and multi-dimensional scale，this paper probed into the conceptual structure of kinship words of Naxi nationality. The subjects were 63 undergraduate students. The results showed that there were 6 categories in the conceptual structure of kinship words of Naxi nationality:（1）parents;（2）elder family members who were the same generation as the parents;（3）brothers and sisters ;（4） brothers and sisters who were connected by marriage;（5）daughter-in-law and son-in-law；（6）grandfathers and grandmothers, children and grandchildren, nephews and nieces. There were two dimensions in the conceptual structure of kinship words of Naxi nationality, one is the same generation/different generation，the other is considerate people/ people who were looked after. There were notable differences between the conceptual structure of kinship words of Naxi nationality and that of Han nationality，these differences came from the languages，family and marriage systems and cultures.

Key words: Naxi nationality, kinship, structure of concepts