The invention relates to a river work model, whose IPC code is E02B 1/02, in particular to a monitoring method for a turbulent fluctuation structure of water flow at the bottom of a daub block during a high-sand-containing flood bed scour by hyperconcentrated flow scouring period. According to the simulated monitoring method, the daub block is prefabricated by an organic glass die box, flaky diaphragm type pressure sensors are distributed on the bottom of the daub block and are connected with a data acquisition instrument via data lines so as to collect a water flow pressure signal in real time. The simulated monitoring method disclosed by the invention has a simple structure, is convenient to operate and can be used for accurately monitoring turbulent fluctuation status of water flow at the bottom of the daub block so as to provide a fesible test method and device for deeply researching the problem of the bed scour by hyperconcentrated flow phenomenon of the Yellow River, and a foundation for recognizing the generation mechanism of the bed scour by hyperconcentrated flow phenomenon and building the scouring index of the bed scour by hyperconcentrated flow phenomenon is laid, and an important basis and an important reference are provided for the planning and the design of a Yellow River flood control plan and a flood control project.