Currently, most of induction bath showers on sale use reflective infrared sensors to control their water control systems. Since the reflective infrared sensors may give wrong information, waste of water may occur. To avoid this phenomenon, a new low energy consumption infrared water control system for showers is designed. The system is based on a pyroelectric infrared sensor module. When the continuous infrared signals emitted from a moving human body are received, the module may output electric signals to an electromagnetic relay. Then, the electric relay lets a solenoid valve be turned on. Thus, the misinformation problem is solved effectively. In addition, because a tubular flow generator is used, the module can save electric energy. The experimental result shows that the shower can run reliably and can be put into practical use.