Most researches on the objective evaluation of fabric wrinkle have ignored that are really important parameters in subjective evaluation using standard replicas. This research has been conducted to find the important parameters in subjective evaluation. In this research, the number and depth of wrinkle were found to be the important parameters. The number of wrinkle was calculated from the ridge density and the distribution of distance between ridges. The depth of wrinkle was calculated from shade length distribution using image analysis. The results showed strong non-linear relationships with those of subjective evaluation.