A vehicle slide rail device including a memory operation link which is configured to release a lock mechanism while leaving a memory member in a state of defining a default position, a holding link which is configured to, in response to an operation of the memory operation link, be engaged with the memory operation link by being biased and hold the memory operation link in a release operated position, a detection member which is configured to come into contact with a trigger member installed and be moved so as to release the holding state of the memory operation link at the release operated position, and a variable structure which is engaged with the pressing portion of the holding link and is configured to change a position where the pressing portion is arranged in the holding link according to a movement of the memory operation link.