The embodiment of the invention discloses a business processing method and device under a hybrid network mode and a mobile terminal. The method comprises the following steps: obtaining the power consumption information of at least two network modes supported by the mobile terminal in the current environment; outputting a prompt message comprising the power consumption information of at least two network modes, wherein the prompt message is used for prompting a user to select a network mode from at least two network modes to serve as a target network mode to carry out business processing; receiving a standard confirmation instruction input by the user according to the prompt message, and utilizing the network mode indicated by the standard confirmation instruction as the target network mode; and controlling the mobile terminal to switch to the target network mode, so as to process the business of the mobile terminal based on the network to which the target network mode belongs. By implementing the embodiments of the invention, the user can select the network mode by outputting the prompt message, so that the selection flexibility of the network mode is improved.