The invention provides a pressing rod type sling adjustable in precision, and belongs to the field of component hoisting. The pressing rod type sling adjustable in precision comprises a movable connecting piece, two first beams and two second beams. The two first beams are oppositely arranged, and the two second beams are oppositely arranged. A four-side sling frame is defined and formed by the two first beams and the two second beams. The movable connecting piece comprises first connectors used for being connected with the end portions of the first beams and second connectors used for being connected with the end portions of the second beams. The first connectors and the second connectors are hinged. First telescopic rods are arranged at the middle portions of the first beams. According to the provided pressing rod type sling adjustable in precision, hoisting points are arranged at the four corner positions of the square sling frame, and the first beams and the second beams are connected into a whole through the movable connecting piece at the positions of the four hoisting points. The movable connecting piece is perpendicular to hinge shafts of the first beams and the second beams, the horizontal force is generated by the sling included angle and is evenly borne by the first beams and the second beams, and generation of inner rigidity force is reduced.