The invention discloses an injection moulding compound buffer ring for a shuttle loom and a preparation method. The injection moulding compound buffer ring for the shuttle loom is characterized by comprising an oval combination ring body which is prepared by adopting a polyurethane material and serves as a buffer ring substrate, a strengthening ring band which covers the outer wall surface of the ring body and is prepared by adopting high-strength canvas or ribbons, and ring pillow embedding blocks which are fixedly connected with the inner wall surfaces of a long axis of the ring body and are prepared by adopting an ultra-high molecular weight polyethylene material; the preparation method for the buffer ring comprises the following steps: a, preparing ring pillows for later use; b, preparing the strengthening ring band for later use; c, embedding the ring pillow embedding blocks and the strengthening ring band into a buffer ring injection moulding mould for performing injection moulding, and preparing the buffer ring by injection moulding.