Abstract: Since 1980s, the distribution of Sinocyclocheilus grahami and other endemic fishes has been investigated.The results show that there is a total of ten species, among which Sinocyclocheilus is grahami is the most widely distributed while Yunnanilus tigerveinus superior in numbers, and Hei longtan and Qinglongtan in Village Baiyi of Congming country have done the best at the protection of endemic fish. The ways of distinguishing Discogobio yunnanensis,the distribution of Yunnailus Pleurotanenia and the measures to protect endemic fish are also discussed.

Key words: Dianchi Lake Valley, Sinocyclocheilus grahami, endemic fish, sistribution and protection