Abstract: Both the structural feature of bimetal composite inlay cast gear ring and the original manufacturing process are introdueed in the present paper. The process of metallic mold casting for bimetal composite inlay cast gear ring is proposed with the highlight in the illustration of metallic mold design method. The bimetal eomposite gear ring produced by the metallic mold process has the characteristics of high dimensional accuracy, less machining, fine and compact structure of wearing layer and good technical and economic results.