The invention provides an intelligent ground locking system. The intelligent ground locking system comprises a controller, and a grounding lock and an earth electrode connected with the controller separately; the controller comprises a main control chip, an encoder and a protection module; the grounding lock comprises an intelligent electromagnetic lock and a transmission module connected with the intelligent electromagnetic lock; and the earth electrode comprises a lightning arrester group and an electromagnetic shielding net. The intelligent ground locking system is designed based on analysis on specific conditions of a transformer substation, and is equipped with various anti-misoperation locking apparatuses, so that an online looking function between electrical equipment and a ground wire is realized, the unified management on the ground conditions of the transformer substation system can be realized, emergency warning treatment in case of dangerous conditions is performed, the ground protection requirement of the transformer substation system can be effectively achieved, and the intelligent ground locking system is worthy of promotion and application.