Abstract: In this paper, the leaching process of the mine rock wastes by natural rainfall was simulated by taking the mine solid wastes as the research object and using the self-developed leaching instrument, and the pollution elements and their leaching rules were explored. The test results showed:① The electric conductivityk of the leachate has the same change trend under different test conditions, the k-t curves are trending down; ②The pH value of the leachate indicates that the fresh and weathered waste rock have obvious different leaching rules; ③ Under different conditions, the S concentration c of the leachate shows the similar change trend, the c-t curve presents the downward trend; ④Under the same weathering degree, the greater the rainfall intensity, the smaller the electric conductivity k of the leachate, the smaller the S concentration c of the leachate c, and the change of pH value is not obvious; ⑤Under the same rainfall intensity, the greater the weathering degree, the greater the electric conductivity k of the leachate, the larger the S concentration c of the leachate, and the lower the pH value; ⑥ Taken together, the weathering degree has greater impact than the rainfall intensity on k, pH value and c of the leachate.