It is an important question for the cognitive study whether implicit processes affect metacognitive control or not. On the Koriat’s (2000) view, the subjective experience is a product through implicit processes, and relates next metacognitive control. It is unclear whether implicit processes influence metacognitive control. Our study investi- gates this question with subliminal mere exposure paradigm. Other important ques- tion is an individual difference of metacognitive process. Song, et al. (2011) showed individual differences in metacognitive monitoring. The purposes of this study are to examine whether (1) the implicit process relates metacognitive control, and (2) this relation depends on individual differences in metacognitive monitoring. Experiment 1 consisted of 3 phases. First phase, participants were presented unfamiliar polygonal shapes subliminally. Second phase, they studied the shape of polygons which were exposed and unexposed at first phase by their pace. Third phase, they made recogni- tion judgments on studied polygons and predicted their recognition performance. The experiment showed that participants who can predict accurately their recognition per- formance allocated more study time to unexposed polygons than exposed. This result indicates that implicit processes may possibly drive metacognitive control through the intermediary of metacognitive monitoring. However, this interpretation is based on an assumption that off-line monitoring defined with the prediction accuracy of recognition performance after self-paced study is identical with on-line monitoring which may in- termediate the effect of implicit processes to control during self-paced study. Therefor experiment 2 examines this assumption about relationship between off-line and on-line monitoring. Our data showed that significant correlation between the on-line and the off-line monitoring measure. The data indicates that the on-line and off-line monitoring have a common process. Our results suggested that we could use the information from the implicit process to metacognitive control.