The invention relates to the technical field of concrete road maintenance, in particular to a concrete road maintenance device. The device comprises a rack top plate, a water storage tank, a supporting rack, telescopic rods, a water outlet pipe and a water spraying pipe; the water storage tank is arranged in the middle of the upper side of the rack top plate, the telescopic rods are connected to four corners of the outer side of the rack top plate in an inserted mode, and the supporting rack is welded to the lower sides of the telescopic rods; supporting feet are welded to the lower side of the supporting rack, power wheels are arranged on the lower sides of the supporting feet, and the water outlet pipe is connected to one side of the water storage tank; the water spraying pipe is connected to one end of the water outlet pipe, the water spraying pipe is fixedly arranged at one end of the lower side of the rack top plate, and an atomization spray nozzle is arranged on the lower side ofthe water spraying pipe. According to the concrete road maintenance device, through the arranged water storage tank and water spraying pipe, the concrete road which is constructed currently is subjected to water spraying and maintenance conveniently, the supporting feet are welded to the lower side of the supporting rack, the power wheels are arranged on the lower sides of the supporting feet, mobile water spraying is conducted conveniently, and rolling compaction and damage cannot be caused to the concrete road segment which is constructed currently.