The invention relates to a photoinductor support frame for controlling air pressure in a medical air bed, which comprises an integrally formed bottom plate, a side fixing seat and a placing seat. A placing groove is provided on a side of the placing seat different from the bottom plate. Corresponding two clip pieces, and each clip piece is parallel to the bottom plate, so the photodetector can be set on the clip piece on the side of the placement slot to reduce the problem of back and forth shaking of the photodetector, and the integrated structure is increased. Efficiency of assembly and maintenance.一種醫療氣墊床控制氣壓用之光電感測器支撐架,包括一體成形的底板、側邊固定座及放置座,放置座異於底板的一側開設放置槽,放置槽異於底板的側面凸設對應的兩個夾抵件,且各個夾抵件與底板平行,因此光電感測器可設置位於放置槽側面的夾抵件上,降低光電感測器前後晃動的問題,同時一體成形的結構增加裝配及維修的效率。