As a YouTube creator who emerged as a marketing entity, this study aims to explain the influencing factors of consumers' electronic Word-Of-Mouth(eWOM) history through an empirical model and derive academic and practical implications. Specifically, it measured whether self-consciousness, which consists of an individual's inner self or the eyes of others, in the evaluation of oneself, mediated self-determination to make him/her the subject of a particular action, causing eWOM. According to a survey of consumers who are actually active as YouTube creators and analyzing the reasons and results of eWOM, private self-consciousness, a consciousness of one's internal factors, invokes the ability to experience and improve one's abilities, skills, and talents among the three dimensions of self-determination to execute the eWOM of opinion passing and opinion giving. Also, private self-consciousness has been found to affect the eWOM of opinion passing and opinion giving through the autonomy of acting, deciding, and choosing on one's own interests and values. Public self-consciousness has been shown to have a positive effect on autonomy of self-determination, an negative effect on relativity. Also it was not significant in both direct and autonomous effects on opinion passing and opinion giving. This work provides significant implications by empirically verifying differences in influence between sub-factors of self-consciousness, self-determination, and eWOM. Also, it will contribute to creating various marketing effects by presenting a WOM deployment structure so that consumers can predict their motivation for executing eWOM.