Flood control structure of power plant

The flood control structure of the power plant comprises a dam and a flood control enclosing wall, the dam is arranged on the periphery of a plant area in a surrounding mode, the dam is provided with a top face and an outer slope face connected with the top face, and the outer slope face is arranged on the periphery of the plant area and connected with a road surface outside the plant; the flood control enclosing wall comprises a main wall body and a fixing body, the fixing body is connected to the bottom end of the main wall body, an included angle is formed between the fixing body and the main wall body, the bottom end of the main wall body and the fixing body are jointly buried below the top face, and the top end of the main wall body protrudes out of the top face to be used for intercepting flood. Under the condition that the area occupied by the dam is fixed, the height of the flood control enclosing wall can be increased according to actual requirements in order to ensure that the water level preset val