Desorptive behavior of Cr, Zn, Cu species in chromate-polluted soil was studied by contrasting normal soil with the chromate-polluted soil on basis of simulated acid-rain derived from column shower, and the desorptive difference between the two soils was presented. The experiments showed that the large desorptive quantities of the said heavy metals were comparable to low pH value of the simulated acid-rain, the sensitive difference of the two soils for the said heavy metals increased in order of Cr>Zn>Cu, whereas adsorption capacity of contrasting soil to the said heavy metals increased in order of Cu>Zn; the adsorptive capacity of chromte-polluted soil to the said heavy metals increased in the order of Zn>>Cr>Cu. It was concluded that the occurrence of chromate in the said soil had a specific effect on adsorption of Cu, Zn heavy metals, and that distinct linear correlation occurred in accumulative desorptive behavior for Cu, Zn species in both soils, and that accumulative desorptive quantities for the Cu, Cr species increased exponentially. The annual mean desorptive chromium-species quantities form the said soils were 127 and 104 times as much as those of National Standard at pH=4 and pH=5, respectively, i.e., the acid-rain accelerated the desorptive chromium species in chromate-polluted soil, therefore more potentially hazardous effect of chromium species was developed directly or indirectly.