The invention provides a solar heat accumulation system. The system comprises a heat collector, a heat accumulator and a heat utilization device, wherein a heat exchange pipe is introduced in the heat accumulator, exchanges heat with a heat accumulation material and is connected with the heat utilization device through a pipeline; a valve is arranged on the pipeline between the heat utilization device and the heat accumulator, and is in data connection with a central controller; temperature sensors are arranged on an inlet pipe of the heat utilization device, and the temperature of water flowing into the heat utilization device is automatically detected by the temperature sensors; the temperature sensors are in data connection with the central controller; and the central controller automatically controls the opening degrees of valves according to a detected temperature of the heat accumulation material. According to the invention, the temperature of the heat accumulation material is monitored, so that a constant water temperature of the heat utilization device is guaranteed through flow control, and intelligent utilization of the heat accumulation system is realized.