In this article, we would like to explained the Pro-Japanese start point of in Mi-dang``s poetry· In order to achieve this purpose, in this paper, we would like to the next two kinds item was important looked into with the important· As to that, the reason in which his record of achievements was not well clarified is what, whether the start point is that it of the pro-Japanese, when and this poetic logic is what· For the cause which the pro-Japanese activities of Midang did not inform clearly, the record of achievements in which Midang is already clarified even when its own pro-Japanese activities disliked exceedingly to be released was due to take the defensive attitude admitted the recognizes· And the creation of the city genre thanked drastically since it came out on the pro-Japanese· When it showed up in the conclusion till the phenomenon that genre of poem disappears from his chronological record· In conclusion, It cooperated with Japan from April, 1941· In it after this time, two phenomena shows· When looking at the appearance 2 specimens were confined, which deviated through the consideration and which it leaves from the specific space as the back to be, it could grasp to be put at the process where these specimens progress with ‘pro-Japanese’·