Abstract: In order to figure out the relationship among precipitation, runoff and soil water content in Heilongjiang Province, the correlation coefficients and the ratio of precipitation, runoff and soil water content in each grid were calculated on the scale of spring, summer, autumn and winter. The mean correlation coefficient between precipitation and runoff in four seasons and the ratio of runoff to precipitation in spring, summer and autumn were 0.39, 0.85, 0.55,-0.08 and 0.23, 0.20, 0.10,respectively. The mean correlation coefficient between precipitation and soil water content in four seasons, the ratio of soil water content to precipitation in spring, summer and autumn were 0.31, 0.66,0.50,-0.02 and 0.25, 0.08, 0.24, respectively. Except the weak response relationship between the three water sources in winter, the runoff recharge received by precipitation is mainly in spring and summer.The soil moisture content recharge received by runoff is mainly in spring and autumn. The soil water content recharge received by the precipitation mainly in spring and autumn, which provided a reference for the study of regional water source transformation and optimal allocation of seasonal water resources in Heilongjiang Province.