A vehicle steering device includes: a steering mechanism including a rack shaft that has both ends coupled to left and right steering knuckles supporting left and right steerable wheels and steers the steerable wheels; a suspension arm swingably coupled between a vehicle body and a knuckle arm provided on each of the steering knuckles; and a stabilizer bar disposed along the steering mechanism restrains a roll of the vehicle body. Both ends of the stabilizer bar are coupled to the suspension arms. The vehicle steering device further includes: a stabilizer bush that supports the stabilizer bar rotatably and slidably in a vehicle width direction of the vehicle body with respect to the vehicle body; and a link lever connecting the rack shaft and the stabilizer bar and that relatively slides the stabilizer bar in a direction opposite to a sliding direction of the rack shaft.