A headrest device comprises a fixed bracket fixed at a headrest stay and having a driving portion. A first link bracket is connected to the driving portion and a headrest panel which is connected to a headrest cushion, thus the first link bracket moving forward upon actuation of the driving portion. A second link bracket is rotatably connected to the headrest panel and the fixed bracket, respectively, and the first link bracket is connected to the second link bracket. When the first link bracket moves forward, the second link bracket rotatably moves forward together with the first link bracket, thereby tilting the headrest cushion and at the same time moving forward.