Abstract: A heater structure includes a heating unit, a power supply holder, a second conducting element, a locking component, a docking component, a printed circuit board and an identification circuit. The heating unit includes a heating container, a first conducting element and a locking component. The power supply holder has a housing. The housing is connected with an extending wall. The housing is cooperated with the extending wall to define an inner space for accommodating the heating unit. A peripheral wall of the housing is recessed downward and sideward to form a locking groove. The second conducting element is mounted in the inner space. The second conducting element is connected with the first conducting element. The locking component is locked in the locking groove. The docking component is disposed in the inner space. The printed circuit board is mounted to a bottom of the power supply holder.