Solar water heating energy-saving system

The utility model relates to a solar water heating energy-saving system which is designed for solving the technical problems that an existing similar system is poor in structural design, inconvenient to transform and upgrade and high in production and transformation cost. The system is characterized by comprising a solar heat collection plate, a balance heat storage water tank, a plate heat exchanger, a low-area hot water tank, a high-area hot water tank and a hot water tank, the low-area hot water tank is provided with a low-area hot water circulating pump, the high-area hot water tank is provided with a high-area hot water circulating pump, and the hot water tank is provided with a hot water tank hot water circulating pump. The balance heat storage water tank is provided with a liquid level transmitter, a temperature sensor, a solar heat collection circulating pump and a solar heat medium circulating pump, the hot water tank is provided with a temperature sensor, and the temperature sensor is wirelessly con