The invention discloses relates to the technical field of electric power operation, and particularly belongs to a double-side separated metering secondary circuit wiring inspection device and a wire inspection method thereof. The device comprises a primary side detection unit and a secondary side detection unit, wherein the primary side detection unit comprises a power supply module and a controlswitch, the secondary side detection unit comprises a signal detection module, a control module and a display module, a circuit outgoing line on the primary side passes through a current transformer on the outlet side of the transformer; an electric energy meter connected with the secondary side of the current transformer is connected into the signal detection module of the secondary side detection unit; the electric meter is connected with the control module through the signal detection module, and the control module is connected with an external display module, so that the electric meter hasthe positive effects of reducing the working pressure of metering workers, simplifying the configuration of meter installation and power connection workers, and being practical, reliable and simple to operate.