The utility model relates to the field of temporary pavement, in particular to a high-strength light adjustable horizontal metal cushion road plate which is formed by sequentially connecting plate bodies in an inserted mode, each plate body comprises a cover plate, a bottom plate and an I-shaped steel framework, and each I-shaped steel framework is arranged between the corresponding cover plate and the corresponding bottom plate. A sliding fork sleeve I, a sliding fork sleeve II and a sliding fork sleeve III are sequentially arranged on the two adjacent side edges of the plate body, sliding forks penetrate through the sliding fork sleeve I and the sliding fork sleeve II and the sliding fork sleeve II and the sliding fork sleeve III, and a fixing sleeve I, a clamping groove I, a clamping groove II, a clamping groove III and a fixing sleeve II are sequentially arranged on the other two adjacent side edges of the plate body. And an adjusting device is arranged on the plate body. The device is high in strength and light; hoisting transportation cost is saved, labor intensity of workers is reduced, the manufacturing process is simple, connection and detachment between the adjacent roadpadding plates are convenient, time and labor are saved, and when the road padding plates are used on muddy, soft or uneven road surfaces, the height of each road padding plate can be adjusted to adapt to the current environment, and when a heavy vehicle passes, the road padding plates cannot be disconnected or pressed to be warped.