Abstract: Migration of solid and liquid water in black soil as well as soil temperature are studied with the method of Neutron Probe TDR during the soil freezing thawing-process. The results shows that the soil water content in the upper-layer increases 73.7 mm that accountes for 13.4% of annul rainfall,as a result of vertical water transportation from downside soil profile of 2 m depth in the freezing period. The content of solid water is driven by the soil temperature and content and the total water content arrives at a peak of 60% of total water during late February and early March. The content of liquid water decreases in the process,in which the lowest amount accounted for 40% of total water in the steady freezing process.