The utility model relates to an improved cryoforming shoe-making machine, which comprises a cryo-forming machine, a conveying belt, an extraction filter net holder, a sluice mechanism and an electrothermal wire, wherein, both sides of a refrigerator of the cryo-forming machine are provided with cold air flow channels in which evaporators are arranged; the conveying belt is arranged between the refrigerator and a machine base in vertical penetration; a filter net is arranged across a filter net frame on the extraction filter net holder, and the front side of the filter net frame is provided with two pivoting ears; the inlet side and the outlet side of the refrigerator are respectively provided with slide rails, and a pneumatic cylinder is pivoted between a machine table and a sluice; the electrothermal wire is arranged at the position of the slide rail. Thereby, the utility model can prevent the overheating shutdown, prolong the service life of the utility model, and reduce the arranging space of the machine.