Abstract: During the production prospecting process of Yindongzi silver polymetallic mine, it encountered a large number of ancient mining areas in the Ming and Qing dynasties, which made mining technical conditions more difficult.It is preliminarily identified that the ancient mining area is located in the middle of the ore body, the remaining roof ore body thickness is 4 m to 7 m, and the remaining floor ore body thickness is 6 m to 8 m.In order to ensure the economic benefits and safe mining of the mine, a continuous mining method that separates the floor ore body and the roof ore body is designed to recover the residual ore in the ancient mining area.First, the remaining floor ore body is collapsed into the ancient mining area by throwing blasting; after that the remaining roof ore body and part of the roof surrounding rock are collapsed and covers the collapsed floor ore.The cut-off grade is adopted to draw the ore, and finally the collapsed roof surrounding rock is permanently left in the mined area.This scheme makes full use of the tunnel system during normal mining of the mine, greatly reduces the amount of work, and also avoids mutual interference between the recovery of residual ore and normal mining.All tasks of residual ore recovery are carried out in the tunnel, which is safe; each all ore bodies can be continuously mined along the strike, with high production efficiency.During the application of the test stopped, the continuous mining method that separates the floor ore body and the roof ore body extracted 23 000 t residual ore in the ancient mining area, creating economic value of 1.81 million yuan, and the application effect is excellent.