Out of the twenty-four poems? excluding the five that are suspected not to be Wang’s work? this paper closely analyzes the thirteen that are related to Buddhist doctrines and values Wang Anshi upheld in composing Cis. The main thesis of this paper can be divided into three parts. The first part deals with Wang’s Buddhist doctrines. More specifically, I will elaborate the background for his Buddhism and his beliefs as well as contemporary writers and close monks who deeply affected Wang. The second part of the body focuses on Wang’s view on Ci that rejected the North Song dynasty’s fancy style of writing and instead emphasized historiette that was used for Buddhist doctrines. Wang also asserted the importance of composing the lyrics first rather than the melodies. The third body deals with Wang’s Chanli(禪理) Ci. To elaborate, this part studies a Chanli poem called “Wu Dong (无?)” and similar Cis such as 「Yulinling」, 「Nanxiangzi」, 「Wangjiangnan」 to study Wang Anshi’s Buddhist doctrines. The analysis of such poems and Cis shed light on the doctrines of Zen Buddhism, Chanzong Gongan((禪宗公案), Diangu (Allusions), and Buddhism terms that Wang used in the creation of Chanli Ci and contrasts how different his compositions were with those of contemporary gentry. Through the creation of Chanli Cis, Wang tried to differentiate from then-prevalent theme of romance and introduced Buddhism terms and Diangu to expand the limits of Ci, establishing a new era of Ci.