The utility model discloses a multi -functional fast -assembling maintenance platform relates to electric power and examines and repair the instrument field, and this multi -functional fast -assembling maintenance platform mode that the adoption level was put up when putting up was both put up subaerial, wholly puts up and accomplishes the back, and fixed safety hook on the rail hangs on bottom level is put up with the safety hook link, then wholly holds up multi -functional fast -assembling maintenance platform, and the staff is connected safety hook link and health, begins to climb multi -functional fast -assembling maintenance platform. The safety problem of scrambleing the in -process has been guaranteed again to safety problem when so both having guaranteed to build. Guarantee staff's self safety problem when buildding, do not need the staff to rise along with the height of buildding. At the climbing in -process, guarantee the security of climbing in -process through the safety hook. Comprehensive protection staff's self safety problem, has reduced and has overhauld the danger coefficient that the in -process is built, is scrambleed to the platform.