The utility model discloses a discharge device for capacitor, including the insulator spindle and the conductor that discharges, conductor and insulator spindle swing joint discharge, the conductor that discharges includes conductor end and earthing terminal, conductor end and earthing terminal pass through the ground connection annealed copper wire and connect, it puts the electric hook head to put electric hook head and right side on the left of the conductor is served and is equipped with, the left side is put fixed setting of electric hook head and is served at the conductor, the right side is put electric hook head activity setting and is served at the conductor. Can be swiftly convenient completion capacitor bank is just to ground, burden to discharging between ground, the two polesof the earth. Can the one man operation, alone the guardianship accomplish this work. Can accomplish above -mentioned project to capacitor bank's upper unit, and need not to use the cat ladder. Through the statistics, behind the use discharge device for capacitor, the operating time that discharges had shortened 50% more in the past.