A door lock device for a vehicle, comprising: a latch mechanism adapted to be capable of retaining a vehicle door in a closed state relative to a vehicle body; an open lever (31, 32) adapted to be driven along with operation to a door handle provided any of the inside and the outside of the door; an open link interposed between the open lever and a lift lever, the open link provided in the latch mechanism, and capable of switching between an unlock position in which actuation of the open lever in a door-open direction along with door-open operation to the door handle is transmitted to the lift lever, and a lock position in which actuation of the open lever in a door-open direction along with door-open operation to the door handle is not transmitted to the lift lever; and a lock operation unit that switches the open link between the unlock position and the lock position, characterized in that: the lock operation unit includes an active lever that is driven rotationally, a drive mechanism (42, A3) that drives the active lever, and a sub lever assembled to the active lever in a relatively rotatable manner and linked with the open link to be rotatably actuated; the sub lever is set so as to move integrally with the active lever when the open link is switched from the unlock position to the lock position, and to move with the active lever through a bias member when the open link is switched from the lock position to the unlock position; and a retaining portion is provided on the open lever that retains the open link at a retaining position between the lock position and the unlock position when the open link is switched from the lock position to the unlock position in a state where the open link is in the lock position and the open lever is actuated toward the door-open direction along with the door-open operation to the door handle to drive the open link by the open lever. a latch mechanism adapted to be capable of retaining a vehicle door in a closed state relative to a vehicle body; an open lever (31, 32) adapted to be driven along with operation to a door handle provided any of the inside and the outside of the door; an open link interposed between the open lever and a lift lever, the open link provided in the latch mechanism, and capable of switching between an unlock position in which actuation of the open lever in a door-open direction along with door-open operation to the door handle is transmitted to the lift lever, and a lock position in which actuation of the open lever in a door-open direction along with door-open operation to the door handle is not transmitted to the lift lever; and a lock operation unit that switches the open link between the unlock position and the lock position, characterized in that: the lock operation unit includes an active lever that is driven rotationally, a drive mechanism (42, A3) that drives the active lever, and a sub lever assembled to the active lever in a relatively rotatable manner and linked with the open link to be rotatably actuated; the sub lever is set so as to move integrally with the active lever when the open link is switched from the unlock position to the lock position, and to move with the active lever through a bias member when the open link is switched from the lock position to the unlock position; and a retaining portion is provided on the open lever that retains the open link at a retaining position between the lock position and the unlock position when the open link is switched from the lock position to the unlock position in a state where the open link is in the lock position and the open lever is actuated toward the door-open direction along with the door-open operation to the door handle to drive the open link by the open lever. the lock operation unit includes an active lever that is driven rotationally, a drive mechanism (42, A3) that drives the active lever, and a sub lever assembled to the active lever in a relatively rotatable manner and linked with the open link to be rotatably actuated; the sub lever is set so as to move integrally with the active lever when the open link is switched from the unlock position to the lock position, and to move with the active lever through a bias member when the open link is switched from the lock position to the unlock position; and a retaining portion is provided on the open lever that retains the open link at a retaining position between the lock position and the unlock position when the open link is switched from the lock position to the unlock position in a state where the open link is in the lock position and the open lever is actuated toward the door-open direction along with the door-open operation to the door handle to drive the open link by the open lever.