Gong Jianfeng's works are very rich, including Records of the Japanese Province, Returning to the Fields, Collection of Jingzhai, Collection of Yin Qing, Collection of Folk Songs in Southern Yunnan, Jiuzhengpian, Collection of Garden Grass and Yin Qing, Scenery of North and South, etc. After that, disciple Li Nanhui compiled it into twelve volumes of Zhu Laishan Collection. 184 Volume "Summary of the General Contents of Sikuquanshu" evaluates Gong Jianfeng as follows: "Poetry and prose are simple, with no advantages or confusion." In addition, he also wrote 12 volume "Fuqiang County Records", which was highly praised by people who studied the local history of Gangu for thirteen years (AD 1748). Gong Jianfeng died at home on1June, 9671June, 6, at the age of 75.
Gong Jianfeng has been in the DPRK for more than 30 years. Although he has witnessed the sound, color, goods and wealth, he has never been influenced by it. Although he is an emperor, he will be close to ministers and count his handles, but he has never been single-minded and honest. After returning to Li, he made a contribution to Sang. In order to commemorate this scholar in Longshang, people in Shitan Village, Liu Feng Township, Gangu County raised tens of thousands of yuan at 1989 and built Gong Jianfeng Memorial Hall. Calligrapher Pu Jie inscribed the name of the museum. There is a portrait of Mrs. Gong Jianfeng's Women's Day and a collection of Zhu Laishan's figures in the museum. There is a tombstone in the northeast corner, including five tombstones.