The invention relates to a heating moisture-removing type current transformer and a metal-enclosed switchgear, in order to solve the problem of moisture in a terminal box of a current transformer in the prior art. The technical scheme is as follows, the heating moisture-removing type current transformer comprises a busbar barrel sleeving a conductor and a working coil sleeving the busbar barrel, the working coil is covered with an outer cover, and the outer cover is provided with a terminal box for accommodating the inlet and outlet terminals of the working coil, an electric heater is arrangedin the terminal box, and a power supply coil for supplying power to the electric heater sleeves the busbar barrel. The conductor is energized to form a primary winding, the power supply coil forms asecondary winding and obtains an induced current, power is supplied to the electric heater, and the heater heats the air in the terminal box, and the temperature of the air in the terminal box rises,which reduces the relative humidity of the air in the terminal box, causes the air in the terminal box to convect with the outside air, thereby discharging the condensed water and the water mist in the terminal box, and achieving the effects of heating moisture removal.