The invention discloses a cold precipitation tank for degreased cannabidiol in industrial cannabis sativa, the cold precipitation tank comprises a cold precipitation tank body, a fine control blanking device, a support frame, a refrigerator, a controller, a material stirring and dissolving device and a dynamic wax removal filtering device, the support frame is arranged on the upper wall of the cold precipitation tank body, the fine control blanking device is arranged at the upper end of the support frame, and the refrigerator, the controller, the material stirring and dissolving device and the dynamic wax removal filtering device are arranged in the cold precipitation tank body; and the material stirring and dissolving device comprises a stirring and filtering tank, a stirring motor, an electric push rod, a motor fixing plate, a rotating shaft, stirring blades, a lower fixing frame, a bearing plate, a lower connecting rod and a lower baffle. The invention belongs to the technical field of extraction and separation of chemical components of natural plants, and particularly provides the cold precipitation tank for degreased cannabidiol in industrial cannabis sativa, which is convenient for accurately controlling the ratio of ethanol to an extract, facilitating uniform mixing and dissolving of materials and effectively separating filtrate and flocculent floating objects.