Abstract: In this paper the attention is focused on the investigation on the simil-arities and differences in thinking ability between the Tibetan and Han schoolchildren, such as analytical synthesis, comparison and abstract generality,represented in the course of the research of reasoning from analogy. The results show as follows: 1. The general levels and characteristics in the development of thinkingof the Tibetan and Han schoolchildren are essentially the same. 2. There are some differences between the ability of thinking of theTibetanand Han pupils. In other words, the ability of thinking of the Tibetanpupils in a Tibetan class is lower than that of Han pupils in the samegrade, and the marks, which achieved by the Tibetan pupils ina Han class,for the examination on reasoning. from analogy and generality in Chineseare higher than that in Tibetan. This shows that the discrepancies arelargely related to their different environments and learning conditions.

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