The invention provides a urine quick precipitation device used for producing calamitas urinae hominis and belongs to the technical field of preparation of traditional Chinese medicines. The device includes a precipitation tank, in which a multistage precipitation structure, which can enable urine to form multiple precipitate layers in vertical direction, is arranged. A residual liquid storage tank is connected to the bottom of the precipitation tank. The device increases precipitation and crystallization speed of urine and further increases yield of producing the calamitas urinae hominis.