Abstract: The daily-precipitation data of 25 meteorological stations distributed in Jinsha River Basin from 1961 to 2014 were collected to analyze the spatial-temporal distribution and variation trend of precipitation in the basin by Mann-Kendal and EMD. The results indicate that the annual or seasonal precipitation is different regionally; the precipitation in the regions with elevation of above 4000m increases significantly with an average rate of 1.68mm/a; the precipitation in the regions of elevation 3000 to 4000 m shows an insignificant increasing trend with the average rate of 0.8 mm/a; the precipitation in the regions below elevation 3000 m shows an insignificant decreasing trend with the average rate of -0.59 mm/a. Moreover, the annual precipitation variation is mainly concentrated in summer and autumn. The concentration and intensity of precipitations in the regions of above 4000 m and below 3000 m show an increasing trend and the drought there become worse and the extreme precipitations are increasing.