A vehicle lock device includes a base including an entry groove for entry of a striker, a latch that pivots between a restraining position to restrain the striker and a release position to release the striker and also to allow entry of the striker, a locking lever engaging the latch and holding the latch in the restraining position, and a torsion spring that presses the striker rearward in an entry direction when a first arm portion comes into contact with the striker, and that applies an elastic force to the latch toward the release position when the first arm portion engages the latch. The first arm portion of the torsion spring is disengaged from the latch when the first arm portion is pushed down in the entry direction by the striker.