The utility model discloses a CAF50R software maintenance shelter belongs to the maintenance protection technical field of transformer substation, including the cabin body and floor, the cabin body includes the skeleton of setting on the floor and sets up the dustcoat on the skeleton, the serve as reasons gas column frame structure of outside pump air feed of skeleton, the inside of skeleton keepsapart for the independent inflation space of a plurality of, every inflation space on the skeleton all sets up inflation valve and manometer, the skeleton includes a plurality of stand and a plurality of arched beam that is connected with stand upper end, the tip and the middle part of stand all set up the crossbeam, set up discharge valve on the skeleton, set up the solid fixed ring of a plurality of on the skeleton, gu fixed ring and fixing between the ground on ground stake staple through the fixed band fastening connection, the rolling slats door that the magic was pasted is posted in theone end setting of the cabin body, the side of the cabin body sets up a plurality of perspective window. The utility model discloses stable in structure, it is convenient to dismantle the installation, makes things convenient for multiple high -tension apparatus's in the transformer substation maintenance.