Electric soldering iron core

The utility model discloses an electric soldering iron core, particularly an internal heating type electric soldering iron core of a clamping type electric soldering iron used for removing and disassembling an electric appliance part with a plurality of feet. The electric soldering iron core is characterized in that an external insulation sleeve pipe of the electric soldering iron core is longer than an inner core body. A position where the insulation sleeve pipe is elicited by a conducting wire of the core body is provided with a fixation resistance pad made of heat-resistant insulating material or a heat-resistant insulating pad. The utility model better solves the problem that the connecting part of the electric soldering iron core and the conducting wire is easily short-circuited to be damaged. The utility model has the advantages of simple structure, and reliable effect through experiments. The electric soldering iron core is an ideal electric soldering iron core used for a clamping type electric soldering iron.