Electrothermal film electric heater

The invention relates to the field of electric heating equipment, in particular to an electrothermal film electric heater. The electrothermal film electric heater comprises a fixed frame, a movable frame, telescopic mechanisms, a winding device, a heating assembly and heat insulation assemblies, wherein the fixed frame and the movable frame are connected through the two sets of symmetrically-arranged telescopic mechanisms; the winding device is arranged on the side wall of the movable frame, and the heating assembly is fixedly arranged between the fixed frame and the movable frame through the telescopic mechanisms; and the heat insulation assemblies are arranged on the upper side and the lower side of the heating assembly. The telescopic mechanisms are additionally arranged in the electric heater, and connecting rod mechanisms are in the telescopic mechanisms, so that overall bending of the electric heater can be achieved, and the electric heater is suitable for the situation that multiple persons use the ele