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Based on field experiment in Nanpi ecological experimental station of Chinese Ac ademy of Sciences, the soil water salt distribution of postirrigation both on s oil profile and along the border was studied. The results showed that, when prec ipitation rate was the same, the moisture content in 0～100cm soil layer prese nted difference between surge flow irrigation and continuous irrigation. The uni formity of water application was compared, and the best irrigation condition wa s observed when all water supply period were 90min, which was N=3, r=1 /2, and Ton=30min. Meanwhile the soil moisture content had minimal d i spersion degree, and the uniformity of water application was the most satisfacto ry. The taproot region salt content of continuous irrigation was apparently higher t han surge flow irrigation from variation coefficient, which means that the salt distribution dispersion degree of surge flow irrigation was lower than that of c ontinuous irrigation from border initial to border end. Changing irrigation meth od from continuous irrigation to surge flow irrigation can improve water salt di stribution pattern under the condition of same precipitation rate.