Disclosed is a sliding bearing having a sintered layer formed of sintered segments on a sliding side surface of a steel base member, the sintered layer being made of iron group metal powder and solid lubricant and being formed by forcibly compressing the sintered segments, each of which is molded by previously sintering mixtures made of the iron group metal powder and the solid lubricant into a size enough to construct a portion of the whole sintered layer, on the sliding side surface of the steel base member to form the whole sintered layer, and sintering-bonding the sintered segments to each other and also each of the sintered segments to the steel base member.