This study emphasized the self-examination to using webmedia. Proliferation of media-mediated experience cause the reduce and infringe of human experience, and It is suggested to problem to negative operation for Self-identity. Expecially, A tendency of addictive using of Webmedia produce the serious anxiety. Based on this discussion, the relationship of web-media addictive experiences and Self-identity has been studied. There are 9 groups of panels who are divided by using degree of web media experience, the quantitative dimension and addictive involvement, the qualitative dimension. As a result high significance was suggested between the level of web-media addictive experience and Self-identity. Expecially, highly web media experienced group has less Self-identity than low web-media experience group. therefore, Concerns on Web-media mediated experiences were demonstrated. According to the results, in terms of web-media experiences, addictive involvement level affects more meaningfully to the Self-identity than quantitative dimension approach.