The invention relates to a micro corrugation sliding bearing and a manufacturing method thereof. The micro corrugation bearing comprises a shoe back and an antifriction layer made of steel or other metal, and surface of an inner hole of the antifriction layer takes the shape of concave-convex corrugation along with circumferential direction. The manufacturing method comprises the following steps:firstly preparing a metal shoe back, then embedding or casting the antifriction layer into the inner hole of the metal shoe back, and finally machining corrugation by a numerically controlled machinetool or a shaping broaching tool. A working surface of the micro corrugation sliding bearing presents micro corrugation, and concave places of the micro corrugation are used for storing oil, thus improving the bearing capacity and the scuffing resistance of the bearing. The micro corrugation sliding bearing is suitable for low speed and heavy-duty operating conditions, especially for the operating conditions requiring improvement of the bearing performance.