The invention provides a low-temperature drying device for camellia seed. The device comprises a drying box, hoppers, slope-shaped sealing plates, first springs, gears, racks, hydraulic cylinders, ejector rods, material turning mechanisms and heating plates. At least two hoppers are rotationally mounted inside the drying box through rotating shafts at the end parts of the hoppers correspondingly,and the slope-shaped sealing plates are movably mounted at discharge outlets of the hoppers. The hoppers are fixedly sleeved with the gears, the racks are in engagement with the gears, and at least two ejector rods are arranged in the drying box and make contact with the slope-shaped sealing plates on the hoppers. When the hoppers swing, the ejector rods can push the slope-shaped sealing plates toascend, at least two material turning mechanisms are arranged on a cabinet door, and the material turning mechanisms are located over the hoppers. Through the arrangement of the multiple layers of hoppers, camellia seed can be dried at different temperature gradients, the racks drive the gears to rotate in the drying process, then the hoppers are turned over, the camellia seed in the hoppers canbe evenly heated, and then the effect of uniform drying is achieved.