The invention discloses a working accessory capable of being driven by a power tool to carry out rotary reciprocating swinging around the central axis. The working accessory comprises a working part used for realizing the function of the working accessory, and a connection part used for connecting the working accessory to the power tool, wherein the connection part comprises at least two drive contact points used for receiving a drive force of the power tool; and the drive contact points are both arranged on a plane vertical to the central axis and located between the upper end and the lower end of the connection part in the direction of the central axis. The working accessory disclosed by the invention is firm in adaption to the power tool, and adaptive to a plurality of power tools with different connectors.