Abstract: As a mild oxidant，CO₂ successfully prevents the deep oxidation of light alkanes in catalytic conversion，whereas the development of highly active and stable catalyst is the key to its applications. This paper reviews the recent development of catalysts for light alkanes catalytic conversion with CO₂ as oxidant，including catalysts for OMC（oxidative coupling of methane），and catalysts for the ODH （oxidative dehydrogenation）of ethane，propane and butane. The paper also discusses the role and related mechanisms of CO₂ in the reactions.