Power transmission line cable laying device

The invention discloses a power transmission line cable laying device, and relates to the technical field of cable laying, the power transmission line cable laying device comprises a chassis, two motor wheels are rotatably mounted on the chassis, a wire coil bracket is fixedly mounted on the chassis, a wire coil is rotatably mounted on the wire coil bracket through a friction rotating shaft, and a backfill plate bracket sleeves the friction rotating shaft; a backfilling plate is fixedly installed on the backfilling plate support, and a guide protection pipe support is further fixedly installed on the chassis. According to the grooving module, when the grooving chain wheel encounters resistance, the grooving chain wheel can be protected against damage, and mechanical faults caused by too large torque are prevented; gullies with different depths can be formed according to cables with different burying depth requirements, and can be formed only by controlling the contraction of the adjusting electric cylinder; f