The invention provides a molding machine for a rope loop body of a hanging rope. The molding machine comprises an engine base, wherein a pressing rod which can move up and down is mounted on the front face of the engine base; a left cutting platform is arranged on the left side of the pressing rod, and a right rope clamping block which can move from left to right is arranged on the right side of the pressing rod; rope containing through grooves are correspondingly and concavely formed in the opposite faces of the left cutting platform and the right rope clamping block; a rope pulling seat is movably arranged outside the right rope clamping block in a sleeving manner; the top surface of the rope pulling seat is lower than a rope threading hole; the top surface of the rope pulling seat is provided with a first end which can be risen or pressed down, and a chuck for tightly pressing a rope body is pressed down when the first end is pressed down; the front surface of the engine base is provided with a hot cutting machine which can ascend and descend up and down; and a hot cutting blade with a downward cutting edge is arranged on the hot cutting machine, and is located in the range between the left rope containing through groove and the rope threading hole. Compared with the prior art, the molding machine has the advantages that mechanical automation is used for carrying out production operation on the rope loop body and manual operation is replaced, so that the whole working efficiency is greatly improved, the participation amount of workers is few and the security coefficients of the workers is high; and the molding machine for the rope loop body of the hanging rope has the advantages of simple and easy structure, and simplicity and convenience in operation.