The utility model discloses a special multi -functional inspection device, comprises an insulator spindle, the tip of insulator spindle is provided with the reputation electroscope, the fixed wireless camera that is provided with of the other end of insulator spindle, the insulator spindle is connected with the telescopic link perpendicularly, the telescopic link includes second stretch out and draw back pipeline section, first flexible pipeline section and basic pipeline section, the fixed adsorption equipment that is provided with on the flexible pipeline section of second, the platelike structure of adsorption equipment for being isosceles trapezoid, adsorption equipment makes for magnetic material, the end and telescopic link fixed connection that adsorption equipment is short, adsorption equipment's last fixed surface is provided with a plurality of left side adsorption tank and right adsorption tank.