A method and an apparatus for implementing a mobile broadband device service. The method includes the following steps: obtaining, service information of a mobile broadband device according to a rule set on the host or by calling an application programming interface of a Web server on the mobile broadband device; and when it is necessary to use a corresponding function of the host for implementing a mobile broadband device service corresponding to the service information, executing, the corresponding function of the host by calling an application programming interface provided by an operating system of the host, to implement the mobile broadband device service. In the embodiments of the present invention limitations when the mobile broadband device is managed in the Web manner are reduced, and a capability of managing the mobile broadband device is improved.