This study analyzed the presentation trend of a checklist method for trench coat designs. Through this analysis, this study examined the flow of trench coat designs and presents future design directions. Research was conducted in the following method. A total of 1,307 female trench coat photos were selected from the photos presented in the top 4 collections from 2006 to 2011. These photos were used for analysis and frequency analysis was conducted. Among the checklist methods presented in trench coats, the modification type was most common, followed by the elimination type, conversion type, combination type, minimization type, addition type, and magnification type, respectively. Checklist methods were continuously presented even while increasing and decreasing according to the year and season. This showed that it was highly possible for checklist methods to be continuously applied in future trench coat designs. Generally, a high frequency of appearance was shown in 2010 and during the F/W season. According to the development direction of future trench coat designs applied with the checklist method, it is predicted that the modification type and the elimination type (which have generally displayed high appearance frequency) will be continuously magnified in the future. In particular, it is expected modifications in structural details (which have showed an upward trend in 2011) will be further magnified.