The invention discloses a multifunctional cable laying device for power construction. The device comprises a base plate, a grooving roll, first electrical push rods, a first motor, a brushing device,a second electrical push rod, a funnel type suction
nozzle, a
dust collector, a support frame, a first
hydraulic cylinder, second hydraulic cylinders, support shafts, a first rotation roll, a second rotation roll, and a third spring, wherein the brushing device comprises a mounting roll, sleeves, mounting rods, movable rods and
metal brushes. The device provided by the invention has the advantagesthat through the first electrical push rods, the slotting roll, the brushing device, the funnel type suction
nozzle, the
dust collector and a
shovel, grooving can be completed, and the grooving depthcan be adjusted; through the brushing device, dust and stones in a groove can be brushed off, so that the groove can be cleaned, and the grooving quality can be improved; through the support frame, the first
hydraulic cylinder, the second hydraulic cylinders and the support shafts, a cable can be directly laid during the grooving, so that the work efficiency can be improved; and the operation issimple, convenient and labor-saving, so that the labor intensity of workers can be reduced.