The utility model relates to a maintenance vehicle for a 380V switch cabinet, which comprises a vehicle body, universal wheels connected below the vehicle body, a handle connected at the lateral part of the vehicle body, a hydraulic supporting module arranged on the vehicle body and a maintenance platform connected at the top part of the hydraulic supporting module. Lifting is realized under control of the hydraulic supporting module. The maintenance vehicle further comprises a height limiting device, wherein the height limiting device is movable connected between the vehicle body and the maintenance platform, and the height of the maintenance platform is controlled through controlling the height of the hydraulic supporting module. Compared with the prior art, the maintenance vehicle can control the height of the maintenance platform conveniently, thereby being applied to maintenance for the 380V switch cabinet. The included angle between hinged frames forming the hydraulic supporting module is controlled to be 90 degrees through the height limiting device when the maintenance platform reaches the maximum height, thereby enabling the hydraulic supporting module to be uniform in stress distribution in the horizontal direction and the vertical direction, and prolonging the service life of the hydraulic supporting module.