The utility model discloses a wrapping bag compounding machine, including the compounding machine body, the top center department of compounding machine body has seted up the through hole, the throughhole internalization is equipped with the fixed bolster, and outside the fixed bolster extends to the through hole, the bottom of fixed bolster is equipped with the hot plate, fixing hole has been seted up on the fixed bolster, one side of fixed bolster is equipped with the fixed block, and the fixed block locates the top of compounding machine body, the fixed block is hollow structure, the fixedblock internalization is equipped with the fixed column, and outside the fixed column extends to the fixed block, the fixed column activity is located in the fixing hole. The utility model disclosessimple structure, low in production cost, convenient operation, thus can needing avoiding increasing the life of hot plate through changing the heating efficiency that the electric current changes thehot plate through removing the heating efficiency that the hot plate changes the hot plate, reduction in production cost satisfies people's user demand.