The utility model relates to a tunnel lining maintenance technical field provides a tunnel lining intelligence maintenance platform truck atomization and humidification device. This humidification device includes water source conveying system, atomization and humidification system and control system, the atomization and humidification system includes high -pressure fluid pipeline and atomizer, high -pressure fluid pipeline is used for accepting the water of coming is carried to the water tank, high -pressure fluid pipeline with the atomizer links to each other, through the inner wall sprayinghumidification of atomizer to tunnel lining, humidity control device among the control system passes through the humidity parameter of humidity detection device feedback, and is long during the spraying of control atomization and humidification system. This humidification device distributes to being the I shape through arranging high -pressure fluid pipeline to become along the outer arch axis oftunnel lining intelligence maintenance platform truck, and on the inner wall of realizing tunnel lining obtained the basis of abundant and uniform atomization humidification, the route of arranging ofsimplifying high -pressure fluid pipeline was with reduce cost.