The arch installation vehicle is composed of the automobile chassis, front and rear outriggers, sub-frame, sliding table, mechanical arm, working platform, manipulator, auxiliary arm, hydraulic hoist, etc. The structure is simple, the appearance is beautiful and the atmosphere, the driving speed of the car chassis can reach 80KM/H, the mobility is flexible, and the transition is convenient. One device can take into account multiple facets, reducing equipment investment, using the car chassis power when working, no external connection is required Power supply, fast equipment installation speed, equipped with two robotic arms, the maximum pitch angle of the robotic arm can reach 78 degrees, the telescopic stroke is 5m, and the overall forward and backward sliding distance can reach 3.9m. It can be quickly installed on the step arch.