Counterweight strap device for crane and crane

The utility model relates to a counterweight strap device for a crane, which is characterized by comprising a slewing plane balancing stand connected with the top of a mast of the crane; the lower part of the rotary plane balancing stand is connected with at least two groups of luffing plane balancing stands (10); and the lower part of each group of amplitude-variable plane balancing stand (1) is also connected with at least two counterweight connecting plates (29). The utility model also relates to a crane. The counterweight strap and the crane have the beneficial effects that in a connecting manner that a three-dimensional large-plane counterweight is formed by the rotary plane balancing stand and the amplitude-variable plane balancing stands of a counterweight strap, the center of gravity of the whole counterweight is effectively controlled in a plane formed by a hinge point, so that the stability of the counterweight in an amplitude-variable plane and a rotary plane is ensured, the field adaptability of the complete crane is enhanced, and the operation safety of the complete crane is improved; and in addition, through a combined structure of the balancing stands, the stress uniformity of the strap and the mast can be effectively improved.