The invention relates to a seat framework and processing technology thereof. The seat framework is formed by composite integration of continuous glass fiber plastic sheets in multiple layers. Therefore, the seat framework that is finished producing has good mechanical property and is low in weight, high in strength, moderate in rigidity and good in flexibility. Meanwhile, the seat framework that is finished producing is the same and uniform in thickness, thereby ensuring good mechanical properties. Through adopting processing technology, the seat framework with a complicated curved surface complying with human engineering can be easily produced and used more comfortably. In the meantime, processing technology is simplified and assembly difficulty of the seat framework is reduced.