The invention discloses a rotary bottle filling machine for dark tea fermentation. The rotary bottle filling machine comprises a rotary table; the rotary table is sequentially provided with a bottle feeding station, a bottle filling station, a drilling station and a bottle discharging and outputting station; the bottom surface of the rotary table is provided with clamping and lifting mechanisms corresponding to the positions of all the stations, and the clamping and lifting mechanisms are used for achieving lifting of material filling bottle frames; a plurality of material filling holes are formed in the positions, corresponding to all the stations, of the rotary table; the drilling station on the rotary table is provided with a drilling device for drilling holes in loose tea in material filling bottles; and the material filling holes are in one-to-one correspondence with openings of the material filling bottles in the material filling bottle frames. According to the rotary bottle filling machine for dark tea fermentation, through the rotating structure of the rotary table, the bottle feeding station, the bottle filling station, the drilling station and the bottle discharging and outputting station are arranged in the four directions of the rotary table correspondingly; the rotary table rotates to drive the material filling bottle frames to rotate, and work of all the stations is completed in sequence; and the working efficiency is high, the loose tea in the material filling bottles is distributed more uniformly, and the phenomena of material leakage and loosing are avoided.