The vehicle-mounted spraying machine is a highly efficient concrete spraying equipment, mainly used for concrete spraying support construction in projects such as tunnels, mines, and subways. It typically consists of a lifting hopper system, spraying system, frame feeding device, hydraulic system, electrical control system, and so on. This equipment can simultaneously supply two or even three spraying machines to work, achieving automatic feeding, equipped with a large-capacity hopper and intelligent hydraulic system to control feeding, with fast and continuous feeding speed. Compared with manual feeding, the efficiency is greatly improved, and it can also reduce idle running rate and energy consumption. In addition, it has strong mobility and flexibility, able to adapt to different construction environments and complex terrain requirements. It can perform spraying operations over a larger area, reducing the number of equipment movements and improving construction efficiency. At the same time, the lifting spraying machine can accurately spray concrete to the designated position, ensuring spraying quality and uniformity.