Method for detecting state of ground wire in substation

The invention discloses a method for detecting the state of a ground wire in a substation. A ground wire controller is installed on a ground connection wire; a ground connection pile coding and a ground wire cabinet coding are respectively installed on a ground connection pile and a ground wire cabinet; when the ground connection wire is connected to the ground connection pile, the ground wire controller can detect the ground connection pile coding of the ground connection pile; when the ground connection wire is placed in the ground wire cabinet, the ground wire controller can detect the ground wire cabinet coding of the ground wire cabinet; when the ground connection wire is for standby, the ground wire controller can not detect the ground connection pile coding and the ground wire cabinet coding, transmits the coding information to a base station through a wireless network, forwards the coding information to a host through the base station, judges the state of the ground wire by thehost, and can conveniently realize complete detection of three states, such as assembling and connection, standby and storage of the ground connection wire.