A driving tool comprising: a striking unit capable of being actuated in a first direction and a second direction opposite to the first direction and capable of striking a fastener by being actuated in the first direction; a first transmission portion provided on the striking unit; a rotating member configured to be rotated in a predetermined direction; and a second transmission portion provided on the rotating member and capable of being engaged with and released from the first transmission portion, wherein the striking unit can be actuated in the second direction when the second transmission portion is engaged with the first transmission portion and the striking unit can be actuated in the first direction when the second transmission portion is released from the first transmission portion, characterised in that the second transmission portion includes: a first engaging portion arranged along a rotation direction of the rotating member and turned in a predetermined direction to be engaged with the first transmission portion, thereby actuating the striking unit in the second direction; and a second engaging portion actuated in the predetermined direction to be engaged with the first transmission portion and actuated in a different direction from the predetermined direction to be released from the first transmission portion, and wherein the second engaging portion is released from the first transmission portion by being actuated in the different direction from an initial position by a load received from the first transmission portion as a reaction force of a rotational force to rotate the rotating member in the predetermined direction in a state of being in contact with the first transmission portion, and a return mechanism configured to return the second engaging portion released from the first transmission portion to an initial position is provided. a striking unit capable of being actuated in a first direction and a second direction opposite to the first direction and capable of striking a fastener by being actuated in the first direction; a first transmission portion provided on the striking unit; a rotating member configured to be rotated in a predetermined direction; and a second transmission portion provided on the rotating member and capable of being engaged with and released from the first transmission portion, wherein the striking unit can be actuated in the second direction when the second transmission portion is engaged with the first transmission portion and the striking unit can be actuated in the first direction when the second transmission portion is released from the first transmission portion, characterised in that the second transmission portion includes: a first engaging portion arranged along a rotation direction of the rotating member and turned in a predetermined direction to be engaged with the first transmission portion, thereby actuating the striking unit in the second direction; and a second engaging portion actuated in the predetermined direction to be engaged with the first transmission portion and actuated in a different direction from the predetermined direction to be released from the first transmission portion, and a first engaging portion arranged along a rotation direction of the rotating member and turned in a predetermined direction to be engaged with the first transmission portion, thereby actuating the striking unit in the second direction; and a second engaging portion actuated in the predetermined direction to be engaged with the first transmission portion and actuated in a different direction from the predetermined direction to be released from the first transmission portion, and wherein the second engaging portion is released from the first transmission portion by being actuated in the different direction from an initial position by a load received from the first transmission portion as a reaction force of a rotational force to rotate the rotating member in the predetermined direction in a state of being in contact with the first transmission portion, and a return mechanism configured to return the second engaging portion released from the first transmission portion to an initial position is provided.