The invention relates to a bucket pulley capable of bridging and a method for hanging and taking the bucket pulley on an overhead circuit. The bucket pulley capable of bridging comprises a hook and aclosing locking plate, wherein the closing locking plate is arranged at an upper part of the hook and is connected with an outer side of the hook in a sliding way, the hook comprises an L-shaped structure lower hook body and an inverse L-shaped upper hook body which are fixedly connected, the lower hook body and the upper hook body are matched to form an opening and a groove, the groove is used for accommodating a wire, one side, facing the opening, of the lower hook is in an arc shape, the closing locking plate is integrally of an inverse concave structure and is connected to an outer side wall of the top of the hook in a sliding way, the closing locking plate can move upwards and downwards to further open or close the opening of the hook, a hanging ring is fixedly connected to the top ofthe closing locking plate, a hidden cavity is formed in one side, far away from the opening, of the lower hook body, and a movable ladder bridge is placed in the hidden cavity.