SLIDE DEVICE FOR VEHICLE

A vehicle slide device is provided, which can adjustably move the second rail along the first rail without play therebetween in a front-rearward direction with a long adjustment stroke. In the vehicle slide device according to the invention, since a plurality of rolling elements 42 annularly arranged in the attaching portion 43 formed at the second rail 20 are always in contact with the operating surface 47 of the attaching portion 43 and the operating surface 46 of the first rail 10 when the second rail 20 moves relative to the first rail 10 in a front-rearward directions, the play of the second rail 20 relative to the first rail 10 in up-down and right-left directions can be eliminated. Further, since the plurality of rolling elements 42 roll and circulate at the attaching portion 43, the second rail 20 can smoothly move in a front-rearward direction along the first rail 10.