The invention relates to a special maintenance device for realizing locomotive shunting operation at a railway locomotive maintenance field and the special maintenance device allows railway locomotives to complete parallel shunting operation. A locomotive moving platform is a large and medium device in the rail transit industry and has a large size. According to a traditional manufacturing method,parts can only be produced in factories and transported to the field to be assembled and welded for forming, so the mutual parallelism and perpendicularity of wheelsets of a walking part of the locomotive moving platform can not be ensured resulting in rail gnawing, deviation and other situations during the operation process of the locomotive moving platform and an influence on the safe and reliable operation of the locomotive moving platform. An integral locomotive moving platform of the invention adopts the integral manufacturing in a manufacturing plant to ensure the parallelism, perpendicularity and stable operation of the wheelsets during the operation process of the integral locomotive moving platform assembled on site and the avoidance of hunting, rail gnawing and other situations,and can achieve the reliable bidirectional connection of rails of the integral locomotive moving platform. By virtue of the integral manufacturing, disassembled transportation, fixing pins for fixingpositions, bolts for jointing and assembling and welding for forming, the integral locomotive moving platform reduce the on-site workload, shorten the assembling time and improve the installation efficiency. The integral locomotive moving platform has a neat and delight exterior, and the wiring is safe and reliable.