Based on the data of discharge and sediment in Nanning Gauging Station of Yujiang River from 1954 to 2001, the regression analysis between the discharge and the suspended sediment discharge has been made in order to understand the correlation between the suspended sediment discharge and the mean multi -year discharge of each month, the mean monthly value of each year, the mean value of each month, the mean yearly value. Analyzing the discharge and sediment variation at Nanning Gauging Station of Yujiang River has drawn out the principle of the variation trend for discharge and sediment.