In the field of communications technologies, a method and an apparatus for accessing an OTT application are disclosed. By using the accessing method, a user can access multiple OTT applications by using one piece of first user information, and therefore, the user does not need to record first user information separately for each OTT application, so as to reduce complexity of accessing multiple OTT applications. Three types of methods and apparatuses for pushing a message by a server are further provided. By using the message pushing methods, a server can push a message to a terminal that registers but does not enable a related OTT application, and the server can also push a message to a terminal that does not register a corresponding OTT application, so that a terminal does not need to receive a message only if a related OTT application is enabled.