This fully automatic rotary powder filling machine can automatically complete bottle loading, metering and filling, cap sorting, capping, and screw capping processes. It uses a servo screw metering system, offering high precision and speed, making it particularly suitable for fine powders that are prone to dust generation, such as milk powder, protein powder, and coffee powder. The entire machine is made of stainless steel with a closed design, making it dustproof and contamination-proof, and meeting GMP standards. The rotary structure is compact and highly efficient, and can be connected to labeling machines and inkjet printers to form a fully automatic packaging line, making it an ideal piece of equipment for the food, pharmaceutical, and health product industries.