The invention discloses a triangular strand wire rope, which comprises six rope strands and a rope core. The six rope strands are twisted uniformly outside the rope core, each of the rope strand is tangent with the rope core; the six rope strands are arranged according to a uniformly divided angle of 60 DEG; the appearance of the rope strand is substantially triangular, the rope strand comprises a strand core, three central wires, inner wires and outer wires; the strand core is a round wire strand formed by a plurality of wires; the three central wires are arranged according to a uniformly divided angle of 120 DEG, and form a triangle coordinated with the strand core; the inner wires wrap the strand core and the central wires; the outer wires are twisted outside the inner wires; the inner wires are tangent with the central wires and the strand core receptively; the outer wires are tangent with the inner wires. According to the invention, constituent elements have no interspaces between each other, so that the problems of shelling, getting loose and being poor in anti-torsion performance during the working process can be avoided, the high stability, high anit-torsion performance and high reliability of the wire rope can be obtained, and the service life of the product is improved.