The releases of metal elements Al, Mn and Fe appeared phase characteristics, but the phase characteristics were very different among various soils. In most cases, the release processes of Al, Fe were very similar. The relation between cumulative release amount of the three metal elements can been described with Q=A B_1H B_2H~2. After simulating rainfall of 9 150~10 650 mm, compared with the control, pH4.5 acid rain enhanced cumulative release amount of Al 8.16%~87.49%,Mn -4.29%~24.75%, Fe 5.78%~86.03%. pH3.5 acid rain enhanced cumulative release amount of Al 68.59%~158.60%, Mn 26.11%~205.53%, Fe 8.48%~(138.88)%. The sensitivity of metal elements release to acid rain was Al>Fe>Mn. There was a similar characteristic of cumulative release of the three metal elements: the release amount of Al was close to the release amount of Mn, and was far bigger than that of Fe.