Stored hot water supply system distributed on user side

The utility model discloses a stored hot water supply system distributed on a user side. The stored hot water supply system comprises a water circulating supply system, wherein the water circulating supply system consists of a main water tank, a water supply pipe, user side water using devices and a circulating pipe; the main water tank is provided with a heat source; the water supply pipe is provided with a hot water pump; each user side water using device is provided with a backpressure variable-capacitance hot water tank; the backpressure variable-capacitance hot water tanks are connected with the water supply pipe through water supply branches; the circulating pipe is connected with a water replenishing pipe; the water replenishing pipe is provided with a check valve; the backpressure variable-capacitance hot water tank of each user side water using device is provided with a water replenishing limiting switch; and the water replenishing limiting switches are serially connected to one another through water replenishing limiting signal wires and are connected to the hot water pump. The hot water pump is started during running of the stored hot water supply system. The hot water circulating time of a circulating pipe network is greatly shortened, and heat consumption of the circulating pipe network and power consumption of a water pump are reduced in a hot water delivery and distribution process.