Precipitation spatial information is very important in many fields, for which the various spatial interpolation methods are usually used. The paper compared Kirging interpolation method and IDW (Inverse Distance Weighting) to analyze the interpolation results. The two method were used to make interpolation processing the precipitation data from the meteorological stations in the Lijiang River Basin, and to discuss their relative merits and applicable conditions by comparing the observed and interpolated values. The results show that when the mean monthly precipitation is regarded as time step, Kriging interpolation method is better than IDW in months with abundant precipitation, whereas, IDW is prior to Kriging interpolation method in dry months.