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Due to popularization and rapid development of mobile technology such as HSYPA, User-Created Contents service has been developed rapidly. The UCC culture, featured by participation, openness and sharing is based on Web 2.0, which leads to a network society, in which the functions of self-expression can be globally linked to one another through the interactions between 'open space' and 'user participation'. But now this UCC service is emerging stage in mobile. To boost this service in a successful, we attract user to participation in this service. So we recognize service's success as user's participation. The main purpose of this study is to find out what factors of UCC are required for user's participation. The findings of this study indicate that variables on participation in UCC service activities of local residents are as follows: self-efficiency, contents quality, information usefulness, social presence, vitality.