Abstract: The birth，evolution，improvement，and development of borax production technology with CO^2-soda process in possession of China′s own proprietary intellectual property rights were discussed.Due to many advantages，CO^2-soda process had become the only way to produce borax in China.It had showed its strong vital force both in the course of bench-scale test， pilot-scale test，and industrialization，and in the processing of back-up paigeite resource from common szaibelyite resource. The ways，such as concentrated CO^2-soda reaction，additive adoption and carbon dioxide-soda reactor improvement and magnification etc.，that could strengthen CO^2-soda process were demonstrated.

Key words: borax, CO^2-－soda process, szaibelyite, paigeite