The invention discloses an induced current fast release device automatic control method, which comprises the following steps: judging whether circuit breakers at the two ends of a line are opened or not, have a voltage or not and have a current or not; judging whether the voltage and current at the two ends of a pipeline gallery in the line are a low voltage or current or not and whether a knife switch is opened or not; judging whether the line protection of the pipeline gallery in the line acts or not; and if the comprehensive criterion is satisfied, automatically closing the knife switch ofan induced current fast release device on the corresponding side of the pipeline gallery after a certain delay. The invention also discloses an induced current fast release device automatic control system. An induced current fast release device can be automatically closed when a fault occurs in the pipeline gallery of a transmission line. The level of automation and rapidity of induced current release are improved. The risk that the pipeline gallery components are broken down due to the delayed release of the induced current generated by the running line of the pipeline gallery of a faulty line is avoided, and safety guarantee is provided for maintenance.