The utility model relates to a manual fungus bag binding machine, belonging to the machine for fungus production. The utility model can be applied in the enlacement of bag opening in the fungus mass production. The main technical proposal of the utility model is that: a handle and a cam are fixed on the two ends of the same axis, the axis is fixed on a mould, an end of the cam is rotationally connected with a tool holder, the other end of the cam is rotationally connected with a pull rod, the end of the pull rod is connected with a spring which is fixed on the mould, a guide tool and the pull rod are rotationally fixed on the tool holder, the pill rod is connected with a corner of a rotational shaping clamp which the other end is rotationally fixed on the mould, and a lower mould is arranged below the guide tool. The utility model has the advantages of improvement of binding efficiency and quality, applicability of the fungus mass production.