The invention provides a multi-functional gas testing vehicle which comprises a frame, and a folding hand shank, a workbench, a gas bottle frame and a ladder stepping wheel which are mounted on the frame, wherein the folding hand shank comprises sleeves hinged to the two sides of the front part of the frame, two motion bars respectively connected in the two sleeves in a sleeving manner, universal wheels respectively arranged at the lower ends of the two motion bars, and handles mounted on the two motion bars; the upper parts of the two motion bars are bent to form an integral body; the workbench is arranged at the front part of the frame; the gas bottle frame is arranged at the back part of the frame; and the ladder stepping wheel is arranged at the back end of the frame. The multi-functional gas testing vehicle has the advantages of being scientific in design, capable of climbing stairs and used as a workbench, and easy and convenient to operate.