The temperature effect on water retention curves for four typical soils in Shaanxi Province were studied quantitatively in the work. The results showed that the temperature coefficients of water potential increased with the increase of soil clay content and decreased with the increase of soil water content; there were larger temperature coefficients of water potential in the drying process than in the wetting; in the low temperature range (5℃-20℃),the temperature coefficients of water potential were greater than the high temperature range (20℃-50℃);the hysteresis effect on water retention curves tended to decrease with increasing temperature; for the light texture soils, the effect of temperature on the soil water potential can be explained with the STVF model; for fine-textured soil include the light texture soils), the Gain factor model seemed to perform satisfactorily.