A study aimed to examine perceptions of external world and attitude on description in Yeonhang Gasa in the 19th century. Compared with studies on , studies on are very scanty. To figure out features of Yeonhang Gasa in the 19th century, must be studied extensively together with wide comparative study between and . For perceptions of external world, had more hostility toward Ching Dynasty and loyalty for Myung Dynasty than . While demonstrated Sinocentrism by stressing ancient history like Giza Chosun, expressed a strong sense of Sinocentrism through costume of Chosun people and admitted current Ching Dynasty. Considering such fact, two works are based on hostility toward Ching Dynasty and Sinocentrism. Whereas recognized Ching Dynasty looking forward to present and future, had a perspective toward past by figuring out traces of Sinocentrism and stressing loyalty for Ming Dynasty. Meanwhile, in terms of attitude on the description of foreign people and culture, had no negative attitude toward foreigners in the description. It had natural positive attitude to Han(Chinese), and showed rather superior attitude to Russian. To Ching`s emperor, it had always positive attitude thanks to personal interests and expectation. showed positive very attitude toward Han(Chinese) as a matter of course, but showed more positive attitude to Manchurian than . As for Ching`s emperor, there was lamentation by reflecting own ideas toward Ching dynasty, and there was a clear hostility toward westerners. As such, description on foreigners was not a plain description that reflected existing perceptions of external world toward Ching Dynasty.