To significantly shorten a manufacturing time by reducing a manufacturing process, while preventing generation of unnecessary polishing chips and cutting chips, by stabilizing an initial friction characteristic without performing initial running-in work, polishing and cutting, in a wet-type friction material.

In this wet-type friction material 1, a ring-shaped friction material substrate 3 is compressed and fixed on a surface of core metal 2 by heat-pressing by manufacturing metal molds 4 and 5. Since a taper of an angle alpha corresponding to a taper on the outer peripheral side of an upper mold 4 is attached to the outer peripheral side of the ring-shaped friction material substrate 3, the taper is formed such that the thickness in the radial direction of the ring-shaped friction material substrate 3 becomes thin from a middle point in the radial direction toward the outer peripheral direction, without adding a new process to a conventional manufacturing process, and thus, an initial friction coefficient can be stabilized by smoothly engaging by a surface not by a line from the outer peripheral side of high torque when the ring-shaped wet-type friction material 1 engages with a disk.