Abstract: Reduction of CO2 emissions has become a public concern due to the global warming. Based on the CO2 fixation in succinic acid fermentation process，the research progress is reviewed with the microorganism fixing CO2 and producing succinic acid simultaneously，the principle of succinic acid process，and the genetic engineering to optimize the process and improve the efficiency. This review also emphasizes that genetic reconstruction will play an important role in future investigation. Furthermore，concerning the importance of amplification effect in practical application，the effect of reaction conditions on other coupling fermentation process is increasingly important，and correlated researches should be strengthened in this field.