The invention provides a shower water temperature and flow detection control system, and belongs to the technical field of detection and control. The system consists of a temperature detection module, a flow detection module, a water temperature and flow control module, a touch screen, a data storage unit, and a single-chip microcomputer. The system achieves the real-time detection of the temperature of a bathroom, the temperature of outgoing water of a shower and the flow of outgoing water of the shower, enables the collected temperature of the bathroom and the preset temperature of outgoing water of the shower to be processed, and obtains the target temperature of outgoing water of the shower. The system enables the collected actual temperature of outgoing water of the shower to be compared with the target temperature of outgoing water of the shower, and obtains the temperature deviation of outgoing water. The system enables the collected flow of outgoing water of the shower to be compared with the preset temperature of outgoing water of the shower, and obtains the flow deviation of outgoing water of the shower. The system enables the temperature deviation of outgoing water and flow deviation of outgoing water of the shower to be processed, obtains a control signal, and controls cold and hot solenoid valves to adjust the flow of cold and hot water, achieves the closed loop control of the temperature and flow of the outgoing water of the shower, and guarantees that the temperature and flow of the outgoing water of the shower remains in a temperature section which makes a person feel comfortable.