Abstract: In order to reduce the accident rate of flooded factory buildings and ensure the safe and reliable operation of the hydropower station, this study takes the operation status of Xinfengjiang Hydropower Station as an example, analyzes the risk factors of flooded factory buildings, designs water source monitoring points, constructs an intelligent monitoring system based on wireless communication, and monitors real-time water level online; Design emergency plans, carry out pre prevention, in-process control, and post disposal, strengthen risk prevention and control of hydropower plant flooding.