Flood control system

The utility model provides a flood control system, and relates to the technical field of flood control equipment. The flood control system comprises an infrastructure, a hydraulic hoist and a hydraulic steel gate, the infrastructure is provided with a groove, a gate hole is formed in the bottom wall of the groove, and the hydraulic hoist is installed in the gate hole. The hydraulic steel gate comprises a gate body and a box type walking board beam, the bottom of the gate body is in transmission connection with the hydraulic hoist, the top of the gate body is connected with the box type walking board beam, the hydraulic hoist drives the box type walking board beam to stretch out of the gate hole or retract into the groove, and a sealing water stop structure is arranged on the outer wall of the gate body; when the box type walking board beam retracts into the groove, the surface, away from the gate body, of the box type walking board beam is flush with the surface of the infrastructure, and the surface, close t