The invention provides a polishing tool. The polishing tool comprises a tool main head and a polishing female head. The tool main head is used for being connected with an industrial robot and comprises a sealing cover and a driving mechanism, and an opening is formed in the lower end of the sealing cover. The polishing female head is provided with abrasive materials used for polishing. The polishing female head is mounted on the sealing cover, and the surface of a workpiece is polished through the opening in the lower end of the sealing cover. The driving mechanism is connected with and drives the polishing female head. Air suction connectors are arranged on the lower portion of one side face of the front-back side of the sealing cover and located on the polishing powder generation side and face the space above the outer side of the sealing cover. The left side and the right side of the sealing cover are each connected with a displacement sensor. A dust escape preventing component is connected to the periphery of the opening in the lower end of the sealing cover. By adoption of the polishing tool, the problems that the polishing efficiency of the surfaces of large curved-surface parts is low, the polishing quality is poor, and the dedusting effect is poor are effectively solved, and the polishing tool is intelligent equipment which can achieve automatic polishing and automatic replacement of the abrasive materials, allows the robot to participate in cooperation, and can achieve centralized dedusting.