The tunnel type quick freezing machine is mainly composed of a refrigeration system, a propulsion system, an electrical control system, and a quick freezing chamber. The staff will install the frozen food and goods to be frozen on the quick freezing track through the entrance and move them in steps and directions under the action of people. During the movement, stable low-temperature air is formed by the vertical circular action of the fan and guide plate, which exchanges heat with the horizontally moving frozen food, thus achieving rapid cooling of the quick freezing process.