Floor mounting structure and mounting method

The invention discloses a floor installation structure which comprises an installation base plate, and the lower end face of the installation base plate is connected with an installation assembly. A plurality of adsorption assemblies are arranged on the mounting assembly, and the adsorption assemblies are used for limiting the mounting substrate; two symmetrical moving assemblies are arranged on the mounting assembly, and the two moving assemblies are used for mounting additional mounting substrates; and two limiting assemblies are arranged on the mounting base plate. In the using process of the device, a wood floor matched with the device can be directly clamped on the device, then a worker directly fixes the mounting base plate and the clamping assembly through screws so that limiting and mounting of the wood floor can be completed, and then in the dismounting process, the screws are directly rotated so that separation of the clamping assembly and the wood floor can be completed. And meanwhile, threaded hol