The thesis consists of five chapters. Chapter One is the discussion of background, including the development of keyboard music after 17th century in France, and famous composers with their styles of creation. Chapter Two focuses on César Franck¡¦s developmental track of music and his creation of masterpieces. Chapter Three depends on compositional style, dividing into two periods to discuss Franck¡¦s piano music. Chapter Four mainly introduces Franck¡¦s unique creative technique of piano music, featuring the traditional influence from polyphonic and contrapuntal music in Baroque era, cyclic form, phrasing structure and harmonic language. Chapter Five separately discusses formal structure and characteristic features in Prélude, Chorale et Fugue and Prélude, Aria et Final. Finally, we make a conclusion for the whole research. In 19th century, Franck was one of the most important piano composers in France. Prélude, Chorale et Fugue and Prélude, Aria et Final were his most important works, sufficiently presenting Franck¡¦s distinguished compositional style. They opened not only a new field for his composite of piano music, but also brought deep influence on many following composers.