The invention discloses a crane and belongs to the technical field of cranes. The crane comprises a gantry, a hoisting tool, a plurality of range finders and a plurality of hoisting mechanisms, wherein the range finders and the hoisting mechanisms are arranged on the gantry, and the hoisting mechanisms are connected with the different positions of the hoisting tool; the hoisting tool comprises a hoisting tool body and a plurality of weight connectors, the hoisting tool body is located right below the range finders and provided with a first surface and a second surface, the weight connectors are arranged in the different areas of the second surface, the first surface is a surface close to the range finders, the second surface is a surface opposite to the first surface, the range finders correspond to the different areas of the first surface, and the range finders are used for measuring the vertical distance between the range finders and the corresponding areas on the first surface. Thecrane has the advantages that the vertical distance between the range finders and the different areas on the surface of the hoisting tool can be measured through the range finders, and the hoisting tool can be controlled to perform stable hoisting through the hoisting mechanisms.