The purpose of national education is to develop skills and build dignified national character and civilization in educating nation life (Act No. 20, 2003). The paper describes a system of quality assurance in culture and character education in primary education. This study employs the six sigma model which consists of the formula DMAIC (Define, Measure, Analyze, Improve, and Control) to model the development of Quality Assurance System. Quantitative approach is used in this study with Research and Development (R&D) method. The research methodology consists of three stages: preface, development, and examination. The study finds that comprehension level of school members towards the idea, design, and implementation of culture and nation character education in the first stages of academic learning is generally considered decent.