The invention relates to the technical field of transport vehicles, and in particular relates to a heavy-duty equipment transport vehicle. The transport vehicle comprises a power gooseneck, a power unit, a guide wheel apparatus, a fixing apparatus, a frame, a hydraulic suspension, a steering system, a brake system and a hydraulic system, wherein the guide wheel apparatus is positioned on a platform of the power gooseneck or the frame, and the hydraulic suspension and the steering system are positioned at two sides of a middle longitudinal beam of the frame; a longitudinal drawing bar of the steering system is connected with a steering structure, and a side wing of the longitudinal drawing bar is provided with a transverse drawing bar; the steering system is provided with a laterally symmetric center turntable, the center turntable is connected with the middle longitudinal beam of the frame by virtue of a pin shaft and connected with a steering arm of a left wheel and a right wheel by virtue of the transverse drawing bar, and the steering arm of the left wheel and the right wheel is welded at one side of a rotating frame of the hydraulic suspension; and a turntable of the steering system is connected by virtue of the left the right crossed and parallel longitudinal drawing bars, and rotating angles of the left center turntable and the right center turntable are kept consistent. The heavy-duty equipment transport vehicle solves the problems that the steering performance cannot meet the real requirement, the turning radius is small, and tires are seriously abraded.