Saline ice water irrigation must go through two processes: saline ice melting and melt-water infiltration, which determine the effect of irrigation together. An in-lab saline ice melting experiment was conducted using saline water, two in salinity (7.5 g L^-1 and 15 g L^-1) to investigate changes in quantity, quality and ion composition of the saline water during the ice melting process, and a simulated soil column irrigation experiment designed to have four treatments in irrigation water: Treatment FW (irrigation with fresh water), Treatment SW (irrigation with saline water 7.5 g L^-1 in salinity), Treatment SIW(7.5) (irrigation with saline ice melted water 7.5 g L^-1 in salinity), and Treatment SIW(15) (irrigation with saline ice-melted water 15 g L^-1 in salinity), and two treatments in irrigation mode (irrigation with water directly and irrigation with ice), was also conducted to explore effects of irrigation with saline melt water on water and salt movements in the coastal saline soil(silt loam in texture). Results show that saline ice, regardless of salinity level, melted similarly in melting process with melt water higher in volume, salinity and sodium adsorption ration (SAR) at the initial melting stage and lower in the late stage, and ion content and electrical conductivity (EC) of the melt water displayed a similar pattern. Only about 25.46% and 32.78% of the melt water flowing out from saline ice, 7.5 g L^-1and 15 g L^-1 in salinity, respectively, during its thawing process was less than 3 g L^-1, which was critical in soil salt elution. In Treatment FW of the soil column experiment, soil water and salt movement lasted the longest, soil hydraulic conductivity dropped the fastest and soil water content in the surface soil layer after the irrigation water completely infiltrated into the soil was the highest, reach 33.88%, followed by 30.16% in Treatment SIW(15), 29.40% in Treatment SIW(7.5) and 28.64 in Treatment SW. In the four treatments, mean soil salt content reached 2.32 g kg^-1 in Treatment FW, 2.80 g kg^-1 in Treatment SIW(7.5), 3.87 g kg^-1 in Treatment SIW(15) and 4.31 g kg^-1 in Treatment SW. Among the four treatments, the same in irrigation volume, Treatment SIW(15) was the lowest in salt leaching effect. Soil ion analysis indicates that SAR in the 1~25cm soil layer in Treatments FW and SIW(7.5) dropped significantly far below that in Treatments SW and SIW(15). In Treatment FW, the feature of soil alkalization was the most outstanding. All the findings indicate that the relationship between wetting front depth and time follows a power function in Treatments FW and SW, however, the wetting front depth is associated with time linearly in Treatments SIW(7.5) and SIW(15); the fast dropping hydraulic conductivity in Treatment FW is attributed to swelling and dispersion of soil particles; the lower SAR in the top soil layer in Treatments FW and SIW(7.5) is due to the water with lower SAR leaching. SAR is positively related to salt in the soil profile, and soil alkalization is positively correlated with pH. To sum up, in areas deficient in fresh water source, but sufficient in saline water source, moderately saline water subjected to freezing and thawing process can be used in irrigation to effectively lower salt content in the topsoil and to meet the demand of the agricultural production for water.