Construction method of floating floor

The invention relates to a construction method of floating floor. The method is characterized by giving detailed description of room floating floor construction and quality control in rooms of high-level acoustic technology requirements, and controlling room acoustic technology requirements of rooms such as a studio, a recording room, a control room, a dubbing studio and a standard viewing room; for the floating floor, elastic damping cushion blocks are arranged on a structural layer, glass fiber is filled in the cushion blocks to absorb shock waves or sound waves, lumber-core boards is arranged on the elastic damping cushion blocks, a waterproof layer is made, steel bars are banded and concrete is poured and firmed by ramming to form a topping, and space between the two layers of structures is made overhead by the elastic damping cushion blocks, thus noise index requirements of transmitting vibration and sound outside the room to the acoustic technology room by the structures are achieved.