The invention discloses an intelligent switch bolt spanner for electrified fastening, and relates to the technical field of electric power maintaining equipment and tools. The intelligent switch bolt spanner comprises a bolt sleeve, a common sleeve, positioning screws, a crank handle, an insulating outer sleeve and a protection ground wire. The bolt sleeve is connected with the common sleeve. The common sleeve and the crank handle are fixedly connected through the positioning screws. The protection ground wire is fixed to the outer wall of the common sleeve. The intelligent switch bolt spanner is light, convenient to move and safe in usage. According to the line equipment management and maintenance work practicality, an operator can learn easily, rapidly grasp the principle and carry out operation conveniently. Equipment power failure is not needed for timely maintenance, the hidden danger of sudden line faults caused by loosening of an intelligent switch bolt is avoided, and power supply of electric power equipment is guaranteed; and economic losses caused by power failure are reduced, and economic benefits and social benefits are obvious.