The invention discloses a pediatric body position therapy fixer, comprising a base plate, an electric push rod, a table plate, a fixed seat, a guide plate, a fixed shaft, a foot support plate, a fixed sleeve, a guide rod, a backing plate, a filling and suction pump, and a Y-shaped tube , air cushion, this pediatric body position therapy fixer has ingenious structure and powerful functions. Firstly, through the design of supporting standing mechanism, it can realize the standing posture rehabilitation training of children with cerebral palsy, and achieve the purpose of correcting the children's subsequent walking posture. Secondly, through the built-in multi- The cooperation effect of the group adjustment mechanism satisfies the standing needs of different heights and different angles. Finally, through the above, the clinical practicability is expanded and the purpose of popularization and application is achieved.