An information pushing method and device across mobile applications are used for pushing important information under the situation that a user shuts down an application information pushing function during mounting. The method comprises the steps that S100. an information pushing application program interface is provided, the information pushing application program interface which can be used for calling is provided for a server side of a mobile application A which needs to push information to the user; S200. the information which the mobile application A needs to push is obtained, a mobile application B obtains the information which the mobile application A needs to push by calling the information pushing application program interface of the mobile application A; S300. the information is displayed, and the mobile application B displays the information which the mobile application A needs to push to the user. The information pushing device across the mobile applications with the method comprises an information pushing module, an information obtaining module and an information displaying module. Under the situation that the user does not receive the pushed information during mounting, the user can be flexibly promoted to open an application.