Abstract: The use of fossil fuels is the main cause of global warming. The technology of carbon capture,utilization and storage(CCUS) can effectively reduce carbon emissions and alleviate the pressure of climate change. Chemical absorption is one of the important methods of CO_2 capture,which has the advantages of high separation efficiency and low cost. But there are some problems,such as high energy consumption in the desorption process,long-term use of equipment corrosion and so on. The enhanced chemical absorption of CO_2 by carbonic anhydrase( CA) can improve the absorption efficiency and effectively solve the heat loss in the traditional process,which has gradually become a hot spot in the research of CCUS. However,CA has some disadvantages such as low thermal stability and poor repeatability,so it needs to be immobilized to improve its stability and activity. he immobilization methods and common carrier materials of CA were mainly introduced,the mechanism of CA in strengthening CO_2 capture was summarized,its application in CO_2 capture was discussed,and the development of this technology was looked forward to. The carrier and method of immobilization will affect the properties of immobilized enzyme,so the appropriate carrier and method should be selected during the immobilization of CA. CA immobilization methods include adsorption,embedding,covalent binding and cross-linking,and each method has its own advantages and disadvantages. The appropriate immobilization method should be selected according to the field of enzyme application. The commonly used immobilized carriers are natural polymers,inorganic carrier materials and so on. The physical and chemical properties and industrial application ability of the carriers should be taken into account when selecting them. In the process of CO_2 capture,CA enhances the capture efficiency mainly by promoting the absorption of CO_2 by chemical solvents and inducing CO_2 mineralization to form calcium carbonate. The future research direction should focus on the development of novel CA with higher activity and stability,the preparation of cheap and high-performance carrier materials,and further explore the obstacles to the industrial application of CA caused by internal factors and external conditions.