The utility model discloses a tinfoil packing machine for chocolate, and belongs to the technical field of packing machine manufacture. The tinfoil packing machine comprises a grooved wheel, a geometrical enclosed cam, a six-rod mechanism, a gear system, and other simple and effective combinations. The tinfoil packing machine is compact in structure, effective, and convenient. A simple mechanical principle technology is applied to the tinfoil packing machine to solve the complex problems generated during a skin packing process; for instance, the tinfoil packing machine can pretreat the bar-shaped chocolate before the bar-shaped chocolate is packed with the skin, that is, the block chocolate is packed with the tinfoil which can prevent the chocolate from being polluted by dust and bacteria, and the shape of the chocolate is not damaged due to the overheated part of the machine during the skin packing process, so that the production efficiency is improved, and the cost loss due to failing shaping is lowered.