PURPOSE: To eliminate a condition to transmit the motive power to the downstream side by the accompanying rotation of friction plates when the clutch is cut off, in a wet type friction clutch.

CONSTITUTION: The first holding members 3 and 4 are fitted to the end of the first transmitting shaft 1 rotatable relatively, the second holding member 12 is fixed to the end of the second transmitting shaft 2, plural friction plates 5 and 11 are provided along the first and the second holding members 3, 4, and 12, while a piston member 14 to press the friction plates 3, 4, and 12, and to connect the first and the second holding members 3, 4, and 12, and a gear engaging mechanism 9 to connect the first transmitting shaft 1 and the first holding members 3 and 4, are provided. And when the piston member 14 is operated to a clutch-in position side to press the friction plates 5 and 11, the gear engaging mechanism 9 is composed to be operated in the connecting condition preceding, linking to the above operation.