The calculation of the induced voltage and current of the double circuit cable-overhead hybrid line is the key to the selection of the grounding switch during the maintenance. The metal sheath of the cable has the function of electrostatic shielding on the wire core, and has different electromagnetic shielding effect on the wire core according to the different grounding mode of the sheath. Therefore, the calculation of induced voltage and current between the cable circuits is different from that of overhead lines. The electromagnetic induction of the operation line to the maintenance line is studied for the typical 220 kV double circuit cable-overhead hybrid line. Firstly, according to the electromagnetic coupling, the calculation formula of the induced voltage and current of the hybrid line is derived. Secondly, the simulation model is built to analyze the influence of the length proportion of the cable section on the induced voltage and current, the influence of the three grounding modes of the cable sheath(single terminal grounding, double terminal grounding and cross interconnection terminal grounding on the induced current), and the influence of the equivalent grounding resistance of the grounding switch on the induced current. The results can provide a theoretical reference for the selection of grounding switches in hybrid line.