“Gookhanmun-shinokpyeon” published in 1908 is the first dictionary characterized as a modern one in which meaning explications have been added and pronunciations have been summarized. “Gookhanmun-shinokpyeon” temporally different about 100 years from “Jeonun-okpyeon” was corrected for some sounds of Sino-Korean with the intention of the editor. This paper attempted to highlight the value that this dictionary has in terms of the history of dictionaries by comparing and analyzing the types and natures for the sounds of corrected Sino-Korean in “Gookhanmun-shinokpyeon” and presenting the features of the sounds of the Sino-Korean in the dictionary.