Abstract: Three monthly rainfall-runoff models,namely the statistical model,Belgium model and Xinanjiang model,were applied to several basins in North China. The simulation result indicated that the statistical model can better reflect the response of catchment out put to its input,the modified Xinanjiang model can better describe the runoff characteristics of semi-arid region and the simulated result was better fitted to the measured runoff.As for the Belgium model,a prelinminary application showed that the fitted result was worse than the Xinanjiang model.