Vehicle seat structure

A vehicle seat structure comprises a seat cushion (10), a seat back (20) connected to a rear end of the seat cushion (10), front link members (34) which have an upper end connected to a front part of the seat cushion and a lower end connected to the vehicle side and shake pre and post; rear link members (91) which have an upper end connected to the rear part of the seat cushion and a lower end connected to the vehicle side and shake pre and post; a lifting mechanism supporting the seat cushion and enabling the seat cushion move up and down relative to the vehicle body. The front link members (34) and the rear link members (91) form a parallel link mechanism. The vehicle seat structure is also provided with a downward displacement suppression device, when a rearward load is input into the seat back, to suppress a downward displacement of the seat cushion. The downward displacement suppression device (90, 100) is a shock-absorbing portion connected to an upper end (91c) of the rear link members (91) for suppres