Abstract: Dry tailings stockpiling technology was originated from gold purification technology in sixties of the last century. Compared with other tailings storage methods, dry stockpiling has its own advantages on aspects like safety, environmental protection and capital investment, but it hasn't been used widely in construction of tailing pond due to its high running costs. With the improvement of press filter technology, dry tailings stockpiling damming will become the new trend for development of tailings stockpiling. Through the analysis and research of stability of a dry stockpiling tailing dam, factors, which influence the stability of dry tailings dam under condition of raining, are analyzed.

Key words: Dry tailings dam, Raining, Permeability coefficient, Stability analysis