The present invention there is a disturbance of consciousness, to provide a prone state locus aid that is to be able to assume a posture of sitting position in a difficult severe patient retention of the head. A prone state locus aid 1 includes a framework 10 having a predetermined height, the upper body front side mounting section 20 provided on the upper portion of the frame portion 10, the upper body front side is fixed to the framework 10 a body portion fixing portion 30 projecting to the side of the mounting section 20, it will be than caster portion 40 that can be accommodated in the framework section 10 provided in the lower part of the frame section 10. The upper body front side mounting portion 20, face mounting portion 50 resilient having a ventilation interval around the mouth and nose are provided. .BACKGROUND【課題】意識障害があり、頭部の保持が難しい重症患者に座位の姿勢を取らせることができるようになる伏臥状態座位補助具を提供する。【解決手段】伏臥状態座位補助具1は、所定の高さを有する骨組部10と、骨組部10の上部に設けられた上半身前面側載置部20と、骨組部10に固定され上半身前面側載置部20の側方に張り出す胴部固定部30と、骨組部10の下部に設けられ骨組部10に収納可能なキャスター部40よりなる。上半身前面側載置部20には、口および鼻の周囲に通気間隔を有した弾力性のある顔面載置部50が設けられる。【選択図】図1