Maritain and Marcel are two French contemporary Catholic thinkers. Maritain did researches on St. Thomas, developping Neo-scholasticism, while Marcel, giving all kinds of systems, concentrated on life-experiences and advocated the concrete philosophy. In different areas, the two philosophers infused new blood into the Catholic belief and gave it a solid academic foundation. The two philosophers met and tried to have dialogue, but due to different characters and choices, they didn't really meet. It was an example of the initial pluralistic effort and differentiation of religious thoughts in our century. The study of the two thinkers helps to understand the evolution and the actual situation of the Catholic culture.