The invention discloses an intelligent switch station water level monitoring and automatic drainage method. Due to the facts that a main water level monitoring sensor, an auxiliary water level monitoring sensor, a main water pump and an auxiliary water pump are arranged and the control scheme and a real-time monitoring system are stable and reliable, the problem that water accumulates for a long time in main regions inside a switch station can be effectively solved, the service life of main electrical equipment inside the intelligent switch station is greatly prolonged, and the safety of the main electrical equipment inside the intelligent switch station is greatly improved.