The invention relates to an emptying device and an emptying method for bullet explosives. The emptying device comprises an explosive-emptying sleeve which is arranged horizontally, a recycle pool with an explosive discharge pipe arranged at the bottom and explosion suppression devices. The explosive-emptying sleeve includes an inner pipe and an outer pipe, and an explosive-collecting cavity is positioned between the inner pipe and the outer pipe. Nozzles are uniformly arranged on the top face pipe wall of the inner pipe at intervals. Explosive-emptying holes are formed in the positions, corresponding to the nozzles, of the top face pipe wall of the outer pipe. A bullet supporting seat with a through hole is arranged on the outer edge of each explosive-emptying hole. One end of the inner pipe is connected with a fluid control system and a supply system through pipes. Washing and heating operations are simultaneously carried on the explosives through hot water or steam to make the explosives be stripped and fused, the explosives then flow into the explosive-collecting cavity with water and finally flow into the recycle pool. The emptying device for the bullet explosives solves the problems that an existing explosive-emptying device is bad in applicability and pollutes the environment. The emptying method is both efficient and safe, and is suitable for emptying TNT explosives, TNT nitronaphthalene composite explosives and RDX composite explosives.