The embodiment of the invention discloses a method for a mobile terminal to process a text, a related device and a related system. The method comprises the following steps of: sending a request message carrying text information and start process position information to a cloud application platform, wherein the text information comprises at least one in the group consisting of a text to be processed, an acquisition address of the text to be processed, or a marker of the text to be processed; while receiving a response message of the request message returned by the cloud application platform or after that, receiving and playing an audio stream from the cloud application platform. A technical scheme provided by the invention can satisfy a requirement of a user to 'listen to' the text on the mobile terminal.