The invention discloses an achieving method of a graph user interface and a conditional access module. The achieving method is used for reducing coupling degree of the conditional access module and a digital television and providing guarantee for set-card separation of the digital television. The achieving method includes that control commands input by a user is received, a graphical user interface is generated according to the control command to obtain a first graphical frame, transport stream comprising graphical user interface elements is formed, and the transport stream comprising the graphical user interface elements is output.