The purpose of this study is to examine the aesthetic expression of media in William Kentridge\'s animated films. William Kentridge reflected a variety of political, historical, social and human being-related themes of South Africa-his motherland and residential area-on metaphorical narratives and then created profound internal and external spaces. In particular, his unique handiwork-oriented charcoal drawing animation technique sublimated somewhat grave themes as apartheid and colonialism into his unique poetic and lyrical strata, thus leaving strong impressions. Out of diverse elements presented in William Kentridge\'s works, letter, machinery and electrical networks appeared as vital beings and convey important symbols and meanings via taking the lead in the social and historical environment of leading characters and having influence upon the identities of characters. This study tries to find out the uniqueness and new values of William Kentridge\'s animated films from the aspect by breaking away the traditional consistent standpoint of study, namely art history-oriented studies or psychoanalytic studies introduced in art circles so far. This study will contribute to the more diversified discussion and development of William Kentridge\'s full-of-passion animated films