The quantity of Chen Yuyi`s Ci writing is not too much in Chinese Song Dynasty, but they were loved by people, and even spreaded to Korea, they also have influence in Korea. Jeong?Gu,Who lived in Jung?Jong period of Chousen Dynasty, imitated Chen Yuyi`s ci riting and created a new ci writing. Chen and Jeong`s ci writing not only have differences in the content theme, style characteristics, but also reflects the different thought of ci writing. Chen Yuyi used the method of writing poems to write ci writing, Jeong?Gu discussed things in his ci writing. Although it is the imitation of others, Jeong?Gu`s ci writing has its own features, showing the new change of ci writing in Korea. Jeong-Gu respected predecessors but not implicited, it is also worth praising and learning by us.