Abstract: An outdoor shower device, comprising a water storage module, a power supply module, a heating module, a control module, a water supply module and an alarm module, wherein the water storage module is employed for water source storage, the control module controls the heating module to heat the water based on the water temperature, and then the water supply module provides the heated water for use. Furthermore, the power supply module provides electric power required for integral operations and enables the alarm module to determine the water level; in case the water level is exceedingly low, it is possible to present blinking display signal and audio alarm sound to inform the user of such a low water level thereby allowing the user to more effectively apply the outdoor shower device of the present invention.