The invention discloses a bearing washer, which comprises a main body workbench, a washing chamber arranged on the main body workbench, a spraying pump and a drive motor, wherein the main body workbench is provided with an inlet-outlet path of the washing chamber; the inlet-outlet path is provided with a feed-discharge trolley; the inlet-outlet path is connected with an inlet-outlet cylinder; an upper spraying pipe is arranged at the top position in the washing chamber, and a lower spraying pipe is arranged at the bottom position in the washing chamber; the feed-discharge trolley is provided with an inner stationary fixture, an outer stationary fixture and an upper drive carriage, and the inner and outer stationary fixtures can adjust and clamp a large-size bearing; a rotary spindle, which can be jointed with the centre of the inner stationary fixture, is arranged at the top position in the washing chamber; and the rotary spindle is connected with the drive motor. The bearing washer has the advantages of reducing intermediate links, automatically completing the whole process of product washing, effectively washing dead corners in the products, greatly improving the cleanness of the product, along with high automation, high washing efficiency, low operation and labor intensity, quick, convenient and flexible clamping and fixing operation and complete washing.