In this article, we analyzed the 『Yonghadorok(用下都錄)』 owned by WonjuLee clan(原州李氏) and examined the area of Durak(斗落) in the Haenam region , the problem of place names, the opening of Mokpo Port and the rice crop house, and the drought in the Haenam region during the Japanese colonial period. The average area of 1 durak in 『Yonghadorok』 is 214 pyeong(坪), which is larger than the average of 200 pyeong in Haenam Country. And out of the 12 places analyzed, there are as many as 4 places that deviate from 200 pyeong to 10% error of 180~220 pyeong, and among them, 2 places are close to 300 pyeong. Thus, it can be seen that even within the same municipality there was a great deviation in the area of 1 durak. 『Yonghadorok』 conveys micro-place names that have not been recorded in the existing research. Accordingly, the analysis of Yonghagi(用下記) can be said to be local history information that can supplement the study of place names at dong(洞) levels. On the other hand, if you look at the 『Yonghadorok』, the same place name is written in different Chinese characters depending on the writer, which shows that even the local literate class was not well versed in the origin of the place names in their own region. The Haenam(海南) area belongs to the Mokpo cultural area, where Mokpo Port can be easily accessed by ship. With the opening of the port of Mokpo Port, the price of rice skyrocketed. Specifically, the price of rice in Haenam and Yeongam(靈巖) region soared 2 times and 2.42 times, respectively. The crop status of Yonghagi is an indirect data that can grasp the drought at the city and county level as a time series. As a result of the analysis, through in 1901, 1912, 1938, and 1942~1943, when droughts occurred in Jeolla Province(全羅道), in Haenam region the average or abundant crops were harvested. As a result, it was possible to specifically observe that the weather-related information at the Province(道) level cannot be applied to the city and county level as it is.