The invention discloses a spinal posture protective cushion, which comprises a cushion body, is connected to the cushion body and a chair surface vertical sacrum supporting block, and the chair surface is 90 degrees or 135 degrees back support block. Therefore, use of the sacrum supporting block against human sacral position, makes the body position and the chair is vertical to the surface of sacrum. So that is connected with the lumbar sacral bone can be perpendicular to the surface of the chair, in order to acheve the purpose of protecting the spinal column posture. The back supporting block and the chair surface is 135 degrees for supporting the back of the human body and a chair surface 90 degrees, which has the function of the sacral bone support block, the cushion is designed into an arc, can from the pelvis weight average dispersion, with shaping, commitment and energy-saving function, the cushion is thin activity type, can be placed in different chair. The supporting rod installed free adjustment of the sacrum supporting block can be high or low position, make the sacrum supporting block also arrived in the human lumbar, to meet the different age stage and the different habits of different demand for comfortable position.本發明公開一種脊柱姿勢保護坐墊,包括有坐墊本體、設於坐墊本體上的與椅面垂直的骶骨支撐塊以及與椅面呈90°或者135°的背部支撐塊;藉此,利用該骶骨支撐塊抵住人體骶骨位置,使得人體骶骨位置與椅面垂直,從而使得與骶骨相連接的腰椎骨能垂直於椅面,以達到脊柱姿勢保護的目的,該背部支撐塊與椅面呈135°時用於支撐人體背部,與椅面呈90°時,兼有骶骨支撐塊的功能;該坐墊設計成弧形,能平均分散來自於骨盆的重量,具有塑型、定型及美臀的功能;該坐墊為薄片活動式,可放置於不同椅子上使用;加裝的支撐杆可自由調節該骶骨支撐塊的高低位置,使得骶骨支撐塊還可抵於人體腰椎上,滿足不同年齡階段及不同習慣對舒適位置的不同需求。10‧‧‧坐墊本體101‧‧‧手抓孔102‧‧‧通孔12‧‧‧前部20‧‧‧骶骨支撐塊21‧‧‧延伸杆22‧‧‧板片30‧‧‧支撐杆50‧‧‧斜度平衡塊51‧‧‧筒體52‧‧‧墊片
