Non-contact line parameter measurement system and measurement method

The invention discloses a non-contact line parameter measurement system and measurement method. The system comprises a measuring end device, a line conversion end device, a measurement instrument anda control terminal. The measuring end device and the line conversion end device are respectively connected to a tested line end; the measurement instrument is connected to a wire outlet end of the measuring end device; and signals are transmitted between the control terminal and the measuring end device, the line conversion end device and the measurement instrument in a wireless communication mode. The measuring end device comprises a switch and a ball gap device. According to the invention, the test end module and the state conversion end module can be controlled in a non-contact manner by operating the control terminal, and line state switching is carried out safely and conveniently, so that line measurement operation is completed. The system is safe, convenient, simple to operate, labor-saving and high in worki