This study is an analysis of Namkub`s 「Byungjaillok(丙子日錄) 」. This reference is written by Namkub who escorted the King Injo to Namhan Mount. Fortress Wall and the title Byungjaillok(丙子日錄) are correct. There are four different versions of this reference which contains a `diary` and records of `accomplishment`. As tracing back each version, we found that the reference was made by two channels. The motivation was the pain he experienced throughout the warfare. It was intended to reflect the fault and pain of the past history. I`ve looked into the structure and contents of the diary part and accomplishments. The diary is written chronological form based on his personal experiences and this became a good storybook. It also contains a considerable tension which is needed to unfold the story. There is also a message based on criticism against spoiled politics and the horrible war. The intention of the writer is effectively displayed through an objective descriptive style. The accomplishment part is written according to incident of several figures who appear in many other books. It is unique since rather than mentioning his own opinion he tries to write down the facts. The objective viewpoint against each heroic figure gives message to the readers.