The invention provides a bottle body transporting device of a full-automatic bottle filling machine. The bottle body transporting device comprises a rotary disc, a plurality of bottle pressing mechanisms, a bottle loosening mechanism, a bottle feeding mechanism and a bottle discharging mechanism. The bottle feeding mechanism conveys empty bottles into the rotary disc, and the bottle pressing mechanisms conduct pressing and positioning on bottle bodies. The bottle loosening mechanism can release pressing and positioning of the bottle pressing mechanisms on the bottle bodies, and therefore the bottle discharging mechanism can conveniently convey the bottle bodies containing materials out of the rotary disc. In the bottle body transporting device, the bottle pressing mechanisms can conduct pressing and positioning on the edges of openings of the bottle bodies, the situation that due to vibration, the positions of the bottle bodies deviate in the rotary disc rotation process is avoided, accordingly, the bottle bodies can be accurately filled with the materials through a charging port, and meanwhile bottle body breaking is avoided. The bottle loosening mechanism can release pressing and positioning of the bottle pressing mechanisms on the bottle bodies, the bottle feeding mechanism can push the empty bottle bodies to the rotary disc, the bottle discharging mechanism can pull the bottle bodies containing the materials out of the rotary disc, and accordingly the filling efficiency is improved.