The invention provides an application internet access processing method and device as well as a terminal. With the adoption of the method for determining an internet access route mode corresponding to an application based on the application and performing application internet access processing on a network port corresponding to the internet access route mode, problems of influence on normal processing of terminal services and very poor user experience due to non simultaneous coexistence of different internet access route modes in a related technology are solved and an effect of improving the user experience is achieved.