The invention relates to the field of a digital television receiving device, and discloses a design method for function interfaces of a digital television receiver. The method is used for solving the problem that the digital television function interfaces on the traditional digital television receiver are inconvenient for calling in a universal browser, and cannot be called on other network terminal devices such as a mobile phone by the network. The method comprises following steps of a, dividing digital television function software in the digital television receiving device into two kinds of a server and a client according to realization modes; b, packaging the functions of a digital television into a set of APIs (Application Programming Interfaces), wherein the set of interfaces satisfy JSON RPC 2.0 specifications, and transmission is carried out by using an HTTP protocol; and C, finishing the interaction function between a client device and the server of the digital television receiving device by calling the APIs. The method is applicable to the design for the function interfaces of the digital television receiver.