The invention discloses a movable hook assembly, relates to the technical field of metal processing equipment, and aims at achieving the technical purpose that the machining efficiency is improved. The assembly comprises a hook support fixed to a moving bracket, a drag rod fixed to a main shaft, and a limiting block fixed to a honing machine. A drag hook is arranged on the hook support in a pivoted manner, a lower hook sharp part rightwards protruding is formed at the lower end of the drag hook, and an upper hook protrusion part upwards protruding is formed at the upper end of the drag hook. Ahook protrusion part downwards protruding is formed at the left end of the drag rod. The upper hook protrusion part of the drag hook hooks the hook protrusion part at the left end of the drag rod, and the hook support is provided with a return torsion spring, wherein the return torsion spring is used for driving the upper hook protrusion part of the drag hook to move towards the drag rod. The limiting block is located below the drag rod, and the limiting block is arranged right on the right of the lower hook sharp part of the drag hook. The provided assembly is arranged in the deep hole honing machine to be used.