The invention is applicable to the field of mounting auxiliary tools used on an power transmission line and provides a combined chuck pulley. The combined chuck pulley comprises a chuck and a pulley hung below the chuck, wherein the chuck comprises upper and lower clamping plates; an upper wire clamping block fixed on the upper clamping plate and a lower wire clamping block fixed on the lower clamping plate are arranged between the upper clamping plate and the lower clamping plate; trunkings matched with the thickness of a lead are formed in the upper wire clamping block and the lower wire clamping block; the upper clamping plate and the lower clamping plate are fixed into a whole through a fixing device; the pulley is hung below the lower clamping plate; the chuck can clamp the lead tightly. Through the adoption of the combined chuck pulley, an anchor line pulley block for tightening lines can be dragged to an appointed point quickly to anchor lines, so that the workload of constructors and the aloft work safety risk are reduced, and the uncertain safety risk caused by use of a Deenyma rope is avoided. The combined chuck pulley has higher stability and safety.