The utility model provides a beam manufacturing board intelligence curing means in advance, temperature and humidity sensor and position sensor A on set up at beam manufacturing field ground or buried navigation inductor in advance, setting up after the pouring one or polylith beam slab and be used for caring the car in the intelligence that liang chang ground went upward away, intelligence is cared the car including AGV, control system and spraying system, and AGV passes through the electromagnetism or optical automatic guiding device makes it to follow the route walking that the navigation inductor set up, control system is including directly or indirectly accepting temperature and humidity sensor on the beam slab and position sensor information and experience the on -vehicle position sensor B of target beam slab position, nozzle among the sprinkler system includes spray nozzle, left and right downwards. The utility model provides a structural design is reasonable, adaptability, the precast concrete beam slab intelligence maintenance of equipment that technology is high. It sprays more evenly, but anytime and anywhere carries out spraying maintenance to the target beam slab.