To provide an electric lock, in which malfeasant unlocking by a picking can be prevented and which can be unlocked from the outdoor side without breaking a door in the case of emergency.

The electric lock 1 is composed of a material capable of being cut by a cutting tool, an inner end section is exposed to the outer end section of a locking-member operating shaft 10, and a plug body 20 exposed on a door external surface 2a is fixed and installed onto the door 2 in an outer end face 21 while protective plates 30a, 30b and 30c consisting of a rigid material being difficult to cut by the cutting tool and being approximately orthogonal to the axial center of the plug body 20 are buried into the plug body 20.