The utility model provides a steel pipe truss encorbelment building carrier plate triangular supports and formwork support system, wherein the steel pipe truss building carrier plate triangular supports that encorbelments, including a steel pipe tripod, on the steel pipe tripod, be close to front position department and be connected with a set of vertical height -adjustable and hold in the palm, steel pipe tripod end is equipped with the connecting piece, height -adjustable props up and holds in the palm along the parallel interval arrangement in steel pipe tripod side to a height -adjustable top of holding in the palm surpasss steel pipe tripod top surface. The utility model provides a traditional angle steel triangular supports frame welding volume great, the angle steel extravagant many, support frame high altitude construction many and the technical problem that is under construction and has a big risk.