The invention designs a mobile crimping vehicle for a wire with a large cross section area, which solves technical problems of heavy workload for crimping wires and uncertain crimping technologies and construction qualities in the prior art. The mobile crimping vehicle is characterized by comprising a bottom platform, a plurality of universal wheels with braking functions are mounted on the undersurface of the bottom platform, and a track is mounted on the top surface of the bottom platform; and a bearing platform capable of moving along the track is mounted on the track, the bearing platform is fixedly connected with a horizontal screw which is threaded to a track side plate and disposed along the moving direction of the track, and two longitudinal steel pipes are respectively mounted to the bottom platform at the position of two ends of the track. The mobile crimping vehicle for the wire with a large cross section area is reasonable in structure and high in intensity; and by adjusting the crimping vehicle using the screw, a worker can easily move a crimping vehicle, can accurately adjust a strain clamp, a horizontal position and a vertical position of a wire to ensure the crimping precision of the wire, and can improve the work efficiency of crimping a bus, the crimping technology and the construction quality on site.