The invention discloses a recycle device of living water. A sewage flow-direction changer is connected between a tap water sink and a sewer; the sewage flow-direction changer consists of a three-way pipe, a sewage flow-direction switch and a water return pipe of a water storage tank; the upper end of the three-way pipe is connected with the sink, and the lower end is connected with the sewer; a middle horizontal pipe is connected with the sewage storage tank through a sewage inlet pipe; the sewage flow-direction switch is located above the connection part of the lower part of the horizontal pipe of the three-way pipe and the sewer; one end of the water return pipe of the water storage tank is connected on the highest water level part of the sewage storage tank, and the other end is connected below the sewage flow-direction switch; a valve is arranged on the mouth of the sewage inlet pipe; a liquid level sensor is arranged in the sewage storage tank; the liquid level sensor is connected with a display device. The recycle device provided by the invention has the advantages of simple structure, convenience in use, good water saving effect, etc.