Construction method of unitized overhead floor heating installation system

The invention discloses a construction method of a unitized overhead floor heating installation system, the integrated overhead floor heating installation system comprises a floor and a wallboard, and a plurality of unit installation structures and electromechanical pipelines are arranged on the floor; the unit installation structure comprises a bearing module, the bearing module is a rectangular plate, supporting devices are arranged at the four corners of the bearing module, sound absorption glass wool blocks are arranged between the bearing module and a floor, at least two floor heating modules are arranged on the upper end face of the bearing module, each floor heating module comprises an extrusion molding heat preservation plate, and floor heating pipes are laid in the extrusion molding heat preservation plates; a balance plate is arranged on the upper end face of the floor heating module, a sound-absorbing damping pad is arranged on the upper end face of the balance plate, and at least two composite til