The utility model relates to a hoisting tool for electric equipment, in particular to an electric hoisting device for a disconnecting switch. The electric hoisting device for the disconnecting switch resolves the technical problem that the mounting and dismounting process of a 350kV disconnecting switch is short of a hoisting device which hoists the disconnecting switch conveniently and saves labor at present. The electric hoisting device for the disconnecting switch comprises a mobile platform, a base is vertically fixed on the mobile platform, a base fixing base plate is arranged on the upper portion of the base in a horizontally rotating mode, a vertical rod is fixed to the upper portion of the base fixing base plate, a shaft pin is horizontally arranged on the top of the vertical rod, and a hook device is hung on the lower portion of a U-shaped ring. The electric hoisting device for the disconnecting switch further comprises a power system fixed to the vertical rod and a steel wire rope, the steel wire rope passes across the hook device and then is wound on the output end of the power system, and the power system is provided with a control box and a button switch connected with the control box. The electric hoisting device for the disconnecting switch can save manpower as much as possible on the premise of thoroughly avoiding safety hidden dangers in the installation process of the disconnecting switch, and improves work efficiency.