Embodiments of the present application relate to a method, device, and system for associating a service account. The method includes obtaining, by one or more processors, event data in connection with execution of an application on a terminal, wherein the event data corresponds to one or more trigger types, determining, by one or more processors, whether the event data corresponds to a predefined trigger data, and in response to determining that the event data corresponds to the predefined trigger data, providing, by one or more processors, service account-association information corresponding to the predefined trigger data.