In order to remove the uremic toxin effectively, hemodialysis patients need more than 120 L of dialysate for each treatment. The source of dialysate is concentrate canisters. Acetic acid concentrate and sodium bicarbonate concentrate are prepared into hemodialysis solution by dilution in proportion in dialysis mixing and dilution for proportion pump by dialysis machine. When the concentrate canister is empty, dialysis therapy will be interrupted and the clearance would be reduced. The concentrated liquid or the dialysate that has been dispatched can be conveyed to the dialysis machine by the central delivery system. Therefore, the interruption of dialysate supply can be avoided and the convenience of operation would be increased. This paper introduces the central delivery system of acidic dialysate concentrate, and provides the maintenance measures of the system for reference.