To provide a freezing device capable of preventing run-on of teeth of a sprocket even when a conveying belt is expanded and contracted, and free from idle running of the sprocket, in the freezing device capable of continuously loading products such as food in the freezing device and taking out the products after completion of freezing.

In this freezing device capable of continuously loading the products such as food in the freezing device, conveying the product by the metallic mesh-type conveying belt, and taking out the products after the completion of freezing, at least three or more sprockets movable in the longitudinal direction of a driving shaft are disposed on both end portions and a central portion of the driving shaft for operating the metallic mesh-type conveying belt.