The Khronos group releases OpenGL ES 2.0 API specification bringing streamlined shader programming to graphics processor of embedded system. For this reason, the mobile devices have need of graphics processor for supporting a OpenGL ES 2.0 API. We need to extend instruction`s length to support OpenGLES 2.0 API, so it needs more memory size. In this paper, we propose a new instruction format that offers availability for use the instructions. This proposed instruction adopt a variable length method and unit instruction architecture. This proposed instruction architecture that support to OpenGLES 2.0 API has consist of 32bit unit instructions up to 4 which can be combined for embellishing each other. Therefore, it can execute flexible instruction combination and reduce waste of instruction fields.