The invention discloses an enamelled stirrer with good sealing property and long service life. The enamelled stirrer comprises a shell, wherein a reaction pot is fixedly arranged at the inner side of the shell; a motor is fixedly arranged at the top part of the shell; a rotary shaft positioned at an inner cavity of the reaction pot is fixedly arranged at an output shaft of the motor; a first moving-end-face sealing ring is fixedly arranged at the bottom of the rotary shaft; a first welding sleeve is fixedly arranged at the bottom part of the first moving-end-face sealing ring; two sides of the first welding sleeve are respectively and fixedly provided with a first static-end-face sealing ring positioned at the bottom of the first moving-end-face sealing ring; inner cavities of the first static-end-face sealing rings are fixedly connected with the top part of an upper bearing seat by first elastic elements; two sides of the upper bearing seat are respectively and fixedly provided with an upper stirring rod positioned at the inner cavity of the reaction pot. The enamelled stirrer disclosed by the invention has the advantages that better sealing property for connection between the rotary shaft and parts on the rotary shaft is guaranteed, so that the service life of the enamelled stirrer is also prolonged.