The invention aims to provide a coil ring assembly and a method for manufacturing the same. The coil ring assembly comprises a coil shell, a coil and a connector. The coil is arranged in an annular groove of the coil shell, the connector is positioned on the outer side of the coil shell, a through hole is formed in the coil shell, coil terminals of the coil can extend out of the through hole and are electrically connected with a connection terminal of the connector, a hollow casting mold is placed on the outer side of the connector, a port of the hollow casting mold is adjacent to the end, where the through hole is formed, of the coil shell, and liquid resin is filled into the annular groove and flows to the casting mold via the through hole, so that the connector, the coil and the coil shell are integrally adhered with one another by the resin, joints of the coil terminals and the connection terminal are fixedly embedded in the resin, and the resin flows through the through hole from the annular groove of the coil shell and then flows to the outer side of the connector. The coil ring assembly and the method have the advantage that the connector can be firmly connected with the coil.