The invention relates to a 10KV bypass cable operation method, which comprises the steps of ancillary facilities mounting, bypass cable erection, bypass fuse protector mounting, bypass switch mounting and nuclear phase and load transfer. The invention replaces the common mode that the line repair is carried out only under the power-off condition, thus providing a safe, reliable, effective and convenient approach for improving the power supply reliability and for the power supply reliability in China to achieve the international advanced level, and having obvious economic and social benefits.