To reduce the generating frequency of squeak by a brake device during starting by a method wherein at least a part of organic fibers, such as Aramid fibers, contained in a friction material is present in a pill-form non- opening state.

Mixed organic fibers, such as Aramid fibers, are dispersed in a lining layer of which a friction material consists, and the organic fibers being present is present in a monofilament 14 state and the fibers present in a pill-form non opening fiber lumps 16, 16,... are mixed together. The pill-form non-opening lump 16 part is dispersed and formed in density lower than that of a part present in the monofilament 14 state. Thereby, a dense part and a coarse part are mixed together in the lining layer and as a result of vibration transmitted through the lining layer being absorbed by the coarse part and damped, the occurrence frequency of squeak during brake is decreased. It is preferable that the spill-form non-opening lump 16 has a diameter of 0.5-5mm. Further, it is preferable that a mixture amount of the non-opening lump 16 is 1-10vol.% based on a whole amount of a lining layer.