Provided is a vehicle seat (S) including a vehicle occupant support member (20) that can be assembled to the seat cushion frame (F1) with ease. A vehicle occupant support member extends between a front cross frame member (15) and a rear cross frame member (16) for supporting a vehicle occupant from below and fitted centrally with a child seat anchor (17), and a rear end part of the vehicle support member is provided with an anchor engagement portion (23B) for engaging a part of the anchor to prevent lateral movement of the vehicle support member. The vehicle occupant support member includes a plurality of spring members (21), a rear hook member (23) connected to the rear ends of the spring members and hooked onto a rear cross frame member, and a front hook member (22) connected to the front ends of the spring members and hooked onto a front cross frame member.