Strengthening character education comesfrom the values of Pancasila, Religion and Culture. Introducing karate to children is one of the ideal ways to develop character values so that the concept of supporting character education can be instilled through the karate oath tradition. The karate oath tradition consists of 5 sentences which include: (1) maintaining personality; (2) adhering to honesty; (3) being able to enhance achievement; (4) maintaining good manners; and (5) being able to control themselves. Knowing and understanding the content of character values in the karate oath tradition is the aim of this study. The method in this research uses content analysis with a qualitative approach, and the data source comes from a karate practice pocketbook. The content of the karate oath sentences becomes the focus of analysis in this study. The data collection was carried out by careful analysis and recording of the character values contained in the karate oath sentences. The results showed that the five sentences in the karate oath contain 18 character values: tolerance, discipline, nationalism, social care, love of peace, responsibility, independence, communication, honesty, love for the homeland, respect for achievement, creativity, and curiosity. So introducing karate from an early age ( 7 years old) is highly recommended. Besides that, it has a positive effect on physical development and fitness. The mental quality of children from improving character education will grow and develop.