In situ soil solutions in cultivated land in Henan Plain were sampled by rhizon soil moister sampler (Rhizon-SMS). The heavy metal concentration in soil solution was predicted by semi-experience model which were obtained by statistical method. A function including organic carbon content of soils was obtained for Cu in soil solution, a function including soil pH for Cd in soil solution, and a function including soil pH and total Zn content in soil for Zn in soil solution. Cu concentration in soil solution showed no linear correlation with soil pH, but Cd and Zn concentrations in soil solution showed positive correlation with soil pH. The distribution coefficient (Kd) for Cu, Cd, and Zn in soil-solution phase were calculated. The Kd for Cu, Cd, and Zn was in order as Cu > Zn> Cd. Those showed that the mobility of Cu, Cd, and Zn in soil was in order as Cd > Zn > Cu. Log (Kd-Cd) and log (Kd-Zn) showed simple linear correlations with soil pH and the obtained functions were significant (p<0.01). Based on Freeze and Cherry model, combined with log (Kd-Cd) and log (Kd-Zn) linear correlations with soil pH, Cd and Zn migration velocities in soil were estimated. The lower migration velocity of Cd in soil suggested most Cd accumulated in 0 ~ 15 cm topsoil, but Zn migrated further downward in soil profile.