The invention relates to the technical field of friction stir welding, and discloses friction stir welding equipment for a stationary shaft shoulder. The friction stir welding equipment comprises a base and a rectangular box; and a jacking block is fixedly mounted in the middle of the top end of the base, a transverse plate is fixedly mounted on the top of the jacking block, and a control unit isfixedly mounted on the obverse side of the jacking block. According to the friction stir welding equipment for the stationary shaft shoulder, by forming a square opening and a collecting box, when thebottom of a stirring needle body conducts friction welding on a workpiece, waste materials generated at the time penetrate through a gap between a stationary shaft shoulder body and the stirring needle body to enter the collecting box, the cross sectional area of the side face of the square opening is equal to the cross sectional area of the side face of the collecting box, thus the collecting box can be taken out of the stationary shaft shoulder body, the problem that the waste materials in the stationary shaft shoulder body are difficult to dispose is prevented, meanwhile, the situation that rotating of the stirring needle body is affected by the excessive waste materials in the stationary shaft shoulder body is also avoided, and the practicality of the friction stir welding equipment is improved.