Abstract: This paper is a comparative study of the concept formation of 290children from different areas and ethnic groups aged 7-11. They com-prised of a group of Han children from Kunming and another group of Han,Dai and Jingpo children from Ruili. Experiments on the cultural influenceover children's concept formation showed that in all the five researchitems, all the children in the Kunming group had a higher score than thoseof the Ruili group. Among the three nationalities in Ruili, such differe-nces were not so significant. This paper discusses the major reasons forthe differences from three perspectives: school education, family education,and social background.

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