Since 1988, the Department of Digital Engineering at Numazu National College of Technology have introduced a Project-Based Learning (PBL) with Micro Intelligent Robot System "MIRS" into the curriculum for the education of system development process. We are intended to provide a place of learning "process of system development" and "making education as a creative education" through the development of robot. In 2009, a new robot platform, which is provided for students at the beginning of this PBL program, was developed in order to improve the technical factors of robot system, and at the same time, increase students' motivation for learning. In this paper, we reported practice of PBL Program developing MIRS in 2013 and the efforts of four years. Features of 2013, is that the students to study the needs of society, we have proposed a new competition. A further improvement of student attitudes and motivation for making things up will be an issue in the future.