A shift lever device which includes: a shift lever turnably fitted on a stationary member; an engaging member for engagement of the shift lever with the stationary member; and a knob fitted on the shift lever. The engaging member is moved toward its distal end to disengage from the stationary member. The knob includes a knob body provided with a fitting hole into which the shift lever is inserted together with a first engaging part of the engaging member, a button pivoted on the knob body, and a link lever connected to the button, having a second engaging part for engagement with the first engaging part. When the shift lever is inserted into the fitting hole and the distal end thereof reaches a predetermined position therein, the button is operated to have the second engaging part engaged with the first engaging part.