The invention provides a vacuum low-temperature dynamic oil bath kettle. The vacuum low-temperature dynamic oil bath kettle comprises an oil bath cavity and a water-vapor separation cavity, wherein the water-vapor separation cavity is located on the oil bath cavity and is communicated with the oil bath cavity, and a water-vapor outlet is formed in the top of the water-vapor separation cavity; a fixed frame and a rotatable charging basket frame are arranged in the oil bath cavity, the charging basket frame is located under the fixed frame, the upper part of the charging basket frame is rotatably connected with the fixed frame, and the lower part of the charging basket frame is connected with motors located under the oil bath cavity; and a charging basket door allowing a charging basket to be fed or discharged is arranged on the side wall of the charging basket frame, a charging basket locking component is further arranged on the charging basket frame, the charging basket frame and the charging basket in the charging basket frame forma rotating common body, a charging basket through body is provided with a through hole, and at least one layer of charging basket is arranged. The vacuum low-temperature dynamic oil bath kettle has the beneficial effects that the structure is simple, the operation is simple and convenient, the energy consumption and the oil consumption are reduced, the working efficiency is improved, the yield is increased, and the labor intensity of operators can be effectively reduced.