The invention relates to the field of medical supplies, in particular to a urine stratified sampler convenient to take and place for nephrology department. The urine stratified sampler comprises a guide rail plate, a support plate, a grab handle, a catheterization collection frame, a stratified storage assembly and the like, wherein the support plate is fixedly connected to the top surface of the guide rail plate, the grab handle is fixedly mounted on the support plate, the catheterization collecting frame is fixedly connected to one end of the support plate, and the stratified storage assembly is arranged on the guide rail plate. A movable plate moves downwards to pull a slotting guide rod to swing through a urine discharging assembly, the slotting guide rod drives rotating plates to swing relatively, the two rotating plates swing relatively and do not block the bottom of the catheterization collection frame any more, urine in the catheterization collection frame flows into a stratified storage frame, and at the moment, a user stops urinating into the urine, so that the stratified storage frame is used for collecting the urine of the front section of the user.