Abstract: Four hydropower stations located on the lower reaches of Jinsha River, i.e., Wudongde Power Station, Baihetan Power Station, Xiluodu Power Station and Xiangjiaba Power Station, have been planned. The Xiluodu Power Station and Xiangjiaba Power Station have been recommended as the first stage engineering of Jinsha River hydropower exploitations. After the construction of first stage engineering of Jinsha river hydropower utilizations, it will lead to aseries of riverbed and hydrology changes in the upper reaches of the Yangtze River. Also it will exert a serious influences on the Hejiang - Leibo national nature reserve of endangered fishes. According to the character