The invention discloses a drying device for production of azithromycin tablets; the drying device comprises a housing, the outer wall of the top of the housing is provided with an air inlet, an air incoming pipe is inserted in the inner wall of the air inlet, an air strainer is fixed to the top of the inner wall of each side of the air incoming pipe through screws, an electric heating tube is fixed to the bottom of the outer wall of one side of the air incoming pipe through screws, a dehumidifier is fixed to the top of the inner wall of one side of the air incoming pipe through screws and is positioned right below the air strainers, a terrace is welded to the inner wall of one side of the air incoming pipe, and a motor is fixed to the outer wall of one side of the terrace through screws. Part of steam in air is removed via the dehumidifier; fan blades and the electric heating tube cooperate to supply air so as to dry azithromycin tablets; the air in the drying device is dry, the temperature therein is appropriate, air supply effect is good, and drying of azithromycin tablets is benefited; deterioration of pharmaceutical ingredients is maximally decreased, and the impact on property and efficiency of the drug is relieved.