—We are suggesting a graphical tangible user interface for augmented reality (AR) authoring tool in product design Environment. This user interface can be used for more efficient and intuitive manipulation of a 3D virtual model in initial prototyping. A game-phone of portable electronic products is selected for our target authoring product. The suggested authoring methods exploit the advantages of both graphical user interface (GUI) and tangible user interface (TUI). Authors can intuitively make adjustments for many parameters using the TUI, and then they can do the same thing more precisely using the GUI. Through many tries and experiments, the suggested combined GUI and TUI authoring method was easier to make a prototype, also it contained fewer errors and took a shorter time to manipulate.