The analysis of Liszt’s “Piano Sonata in B Minor” starts from how his life experience affected his character development, and then describes his different composing style in different period. Chapter II focuses on not only the development of sonata and the main influencing factor of Liszt composition, but also the background of “Sonata in B minor”. By means of the understanding of the background, I expect to give better interpretation which is closer to the composer’s heart when performing. Chapter III contains the analysis and my personal interpretation, relating to my own life experiences. Resources are mainly in chinese and english, along with some in german. The edition of the score is Barenreiter Urtext.