The utility model discloses a powder packing device for powder metallurgy, and the device comprises a worktable, a rotating device, a lifting device and a scraper blade device, wherein the rotating device is arranged on the worktable; a die for powder sintering is arranged above the rotating device; the lifting device controls the powder packing height; and the scraper blade device is used for slicking the powder. The powder packing device for powder metallurgy is simple in structure, and capable of greatly improving the powder packing efficiency and the packing uniformity; and furthermore, the powder packing device can be used for improving the uniformity of the parallelism and compactness of a pressing-sintering molded product, so that the production efficiency is improved, the subsequent machining loss is reduced and the production cost is saved.