The invention discloses a heavy vehicle washing platform for a raw material yard. The heavy vehicle washing platform comprises a stand and a spray washing assembly, wherein two water collecting grooves are symmetrically formed in a bottom face of the stand, sliding blocks are slidably connected to the two sides of a surface of the stand, a sliding frame is arranged on the sliding blocks, an air drying assembly is arranged on the sliding frame, and a moving assembly is arranged at the bottom of the stand; the spraying assembly comprises a spraying frame, nozzles, a water inlet pipe and supporting rods, the spraying frame is arranged on an inner side face of the sliding frame, the nozzles are evenly arranged on the inner side face of the spraying frame, the water inlet pipe penetrates through the middle of a surface of the sliding frame and communicates with the spraying frame, the supporting rods are symmetrically arranged on a surface of the sliding frame, the spraying assembly further comprises a PLC, the PLC is arranged on an end face of the rack table, and an input end of the PLC is electrically connected with an output end of an external power supply. According to the raw material yard heavy vehicle washing platform, rotary washing of heavy vehicles can be achieved, labor intensity is reduced, working efficiency is improved, washing is more comprehensive, and practicability is high.