A wet frictional material having a high heat resistance, excellent durability and superior initial conformability. The wet frictional material contains a fiber base material, a filler, a frictional adjustment agent and a thermosetting synthetic resin. The thermosetting synthetic resin comprises a silicone resin represented by the following average formula. The silicone resin contains a trifunctional unit (RSiO.sub.3/2) (where R represents a substituted or unsubstituted monovalent hydrocarbon group) in an amount of from 40 to 100 mol % of units constituting the silicone resin:(R.sup.1).sub.a (OR.sup.2).sub.b SiO.sub.(4-a-b)/2where R.sup.1 represents a substituted or unsubstituted monovalent hydrocarbon group, and R.sup.2 represents a hydrogen atom or an organic group having from 1 to 10 carbon atoms, and 0.2.ltoreq.a.ltoreq.1.8 and 0