Pan Tian-Shou was one of the most outstanding Chinese painters of the twentieth century. He was a knowledgeable art theorist and educator. All his works whether they are paintings of flowers and brids (huaniau hua), mountain and water paintings (shanshui hua), seal carvings or calligraphy are full of artistic atmosphere, charm and style; the overall impression being of great magnifience. In his theories, he emphasized that Chinese and Western traditions should maintain independence, he objected to the westernization of Chinese paintings, and thought that Chinese painting should retain its own characteristics. During his devoted art education career, lasting half a century, he studied painting theory, history, medium, and technique; he evolved original style, keeping with but not restricted by the tradition. Through his unique ideas about the forms of Chinese painting, his continuous work, and development of his art theory, we can sense a noble spiritual character in his work that is revealed in the lines, composition, motifs, artistic atmosphere, and colophons on his paintings. This thesis discusses and analyses the artist's form and style, to discover the relationship between his theory and works; to better understand the characteristics of his painting and how the artist created his unique style on the foundation of traditional painting. We also examine his views concerning the likely future development of Chinese painting. Initially there is a short introduction of the artist's educational background, early growth, his work and teaching. Next the artist's form is analyzed, include a comparison and discussion about the form from Chinese and Western scholars viewpoints. Furthermore, through the form of the artist's work, such as analysis of the use of brush, ink, colors, composition, seals, signatures, and the artistic atmosphere, conclusions are presented about his unique style and characteristics.