Array cable picking and laying device and method for underwater equipment

The invention relates to the field of picking and laying, and particularly discloses an array cable picking and laying device and method for underwater equipment. The device is arranged on a workboat and comprises supports, a circulating track, and a rolling support, a rolling clamping frame and a rolling bracket which are arranged on the circulating track; and the circulating track is vertically arranged on the workboat and is in sliding connection with the rolling support, the rolling clamping frame and the rolling bracket. According to the invention, the workboat sails to a predetermined operation area, underwater equipment is laid or recovered, and the whole device occupies a small space and is convenient to operate and maintain; by moving the positions of the rolling support, the rolling clamping frame and the rolling bracket on the circulating track, the butt joint, recovery and disassembly of array cables are more convenient during laying; through auxiliary traction of an electric winch, the gravity fa