The invention discloses a processing device for removing iron chips on a bearing ring. The processing device for removing the iron chips on the bearing ring comprises a conveying mechanism used for conveying the bearing ring, a cleaning and rust-preventing device used for processing the bearing ring and a material pushing mechanism. The material conveying mechanism is arranged at a feeding openingof the cleaning and rust-preventing device. The cleaning and rust-preventing device comprises a shell, an annular conveying mechanism, a cleaning and rust-preventing device, a recycling box installedat a bottom outlet of the shell and a pump set. The material pushing mechanism is arranged on the side, far away from the cleaning mechanism, of the conveying mechanism and is opposite to the feedingopening. The left side of the inner wall of the shell is provided with a left support opposite to the feeding opening. An installation column is arranged in the shell and located on the back side ofthe left support. The installation column is provided with a pre-cleaning sprayer capable of rotating. A conveying-out mechanism capable of conveying the bearing ring out of the shell is installed ina discharging opening of the shell in the front-back direction. The treatment device for removing the iron chips on the bearing ring can achieve all-dimensional cleaning of the bearing ring and conduct centralized collection and treatment on iron chips after flushing and guarantee that the processed bearing is prevented from getting rusty.