The utility model provides a feather structure for curtain wall decoration. The plume handle comprises an arc-shaped support, a bottom plate end arc-shaped plate, an outer arc-shaped plate and a plumehandle base. the lower end of the arc-shaped bracket is fixed at one end of the feather handle seat; one side of the bottom plate end arc-shaped plate is connected to the arc-shaped support in a sleeving mode, one side of the outer arc-shaped plate is fixedly connected with the side, connected to the arc-shaped support in a sleeving mode, of the bottom plate end arc-shaped plate, the other side of the outer arc-shaped plate extends towards the end away from the bottom plate end arc-shaped plate, and bottom closing openings of the bottom plate end arc-shaped plate and the outer arc-shaped plate are formed. The utility model has a simple structure, manufacturing convenience, an arc-shaped support composed of a groove edge arc-shaped plate and a groove bottom plate is fixed to a curtain wallkeel. The structural design of the bottom plate end arc-shaped plate and the outer arc-shaped plate expresses the modeling effect, so that the modeling of the feather structure is not limited by thesize of an installation structure on a curtain wall, meanwhile, the groove edge arc-shaped plate can play a role in supporting the bottom plate end arc-shaped plate and the outer arc-shaped plate, andthe stability of the feather structure is guaranteed.