There are several “game testing techniques” to find bugs in game software. But they can not support game developer to correct errors easily and effectively in game development process. And also they are doing process according to game developer’s scenario and intuition at game company in these days. Therefore, to solve the above problem in this paper, this dissertation suggests a efficient testing techniques to judge the suitable generation of the auto-generate game map according to the game user’s playing and verify them TFD (Test Flow Diagram).