A cylinder lock device includes a body, a rotor rotatably arranged inside the body, a holder lever rotationally driven according to a rotation of the rotor, an engagement lever that is link-connected to the holder lever so as to be angularly adjustable and rotationally driven according to a rotation of the rotor, and a retention mechanism to hold the engagement lever into a predetermined direction relative to the body. The retention mechanism is configured to force a protrusion on the engagement lever to contact the holder lever by an elastic force thereof.