The invention provides a prefabricated assembly type self-insulation wallboard component. The prefabricated assembly type self-insulation wallboard component comprises ribs, a structure layer board, an insulation layer board, an insulation filler and a bottom die system with a ring-shaped track, wherein the ribs comprise assembly type self-insulation wallboard side ribs and assembly type self-insulation wallboard middle ribs; the structure layer board is built by reinforced concrete; the insulation layer board is compounded by steel mesh sheets; the insulation filler is built by polyphenyl blocks; the prefabricated assembly type self-insulation wallboard component adopts the bottom die system with the ring-shaped track; the ring-shaped track maintains a balanced fall head. The assembly type wallboard component produced by the process is high in integrality, reasonable in structure, high in quality standard, controllable in process and high in self-insulation performance.