To provide a composite plain bearing superior in characteristics such as heat resistance, creep resistance under high bearing pressure, a low friction and wear resistance, while being manufactured with high productivity.

A composite plain bearing 1 includes an ingot metal plate 2, and a resin layer 3 made of a resin composition with an aromatic polyether ketone resin as a base resin. The resin layer 3 is integrally superposed on a surface of the ingot metallic plate 2 in a thickness of 0.1-0.7 mm by injection molding. The ingot metal plate 2 is formed by applying chemical surface treatment to an interface surface with the resin layer 3.