Abstract: As the key to affect the service life of concrete engineering, concrete durability has become the focus of concrete industry research. Among them, the air content of concrete is the key index affecting the durability of concrete. In order to further explore the influence of air content on concrete durability, this paper selected concrete durability indexes such as compressive strength, frost resistance parameters, relative dynamic elastic modulus and electric flux for detection and analysis. The results showed that when the air content in concrete increased gradually, the compressive strength of concrete at 7 and 28 days decreased, while the frost resistance of concrete increased first and then decreased. With the improvement of air content in concrete, the anti-chloride ion permeability of concrete was continuously enhanced. Therefore, to a certain extent, the increase of air content is conducive to the improvement of concrete durability.