The invention provides an Internet of things-based vehicle speed measurement device, which comprises a fixing base, a supporting column tube, a maintenance bin, a transverse supporting rod, a dustproof cap, a vehicle speed measurement hanger structure, a base anti-collision barrel structure, an Internet of things information transmission box structure, a foldable maintenance work pedal mechanism,a vehicle speed limit plate structure, a cable beam plate, a protective door, a mechanical lock, a moisture-proof pad and a reserved installation plate, wherein the supporting column tube passes through the inner part of the base anti-collision barrel structure to be welded at the middle position on the upper surface of the fixing base. The vehicle speed measurement device provided in the invention can be combined with an Internet of things technology, the measurement information can be timely transmitted to a data receiving terminal, and the vehicle driving speed can be mastered conveniently;a safety protection device for the speed measurement device is provided, the safety of the speed measurement device is ensured, and the service life of the speed measurement device is prolonged; andwhen a speed limit card sticker is repaired, maintained and replaced, adjustment can be carried out, and the operation efficiency is improved.