The utility model provides a prefabricated cabin modularization equipment cabinet structure, relates to prefabricated under -deck modularization secondary screen cabinet and optimizes structure. Prefabricated cabin modularization equipment cabinet structure, screen cabinet (1) fix on the screen cabinet channel -section steel (31) that the cabin body (3) was reserved, reserve line space between under -deck floor and cabin body bottom, do not establish the base, and UNICOM between the screen cabinet (1) is equipped with between the panel of screen cabinet (1) between the cabinet baffle (2), andthe hatch door be the folding door, and the screen is interior, shield indirect line terminal (5) is the circular connector mode. The utility model discloses according to the modularized design theoryof " integrated design, frame -type assembly, function zone division ", adopt the integrated design mode of the cabin body and frame, equipment, break the constraint that original screen cabinet is kept apart, realize prefabricated cabin and secondary equipment organic integration.