The purpose of the study is to investigate the relationship between the variables of the personal and social background and ethnic identity, party identification, evaluation to the candidates, and election issues of the voters and their voting choice in Taipei Mayor Election of 2006. The study uses the information of the large interview, which comes from a four-year-research(2005-2008) of `Taiwan Election and Democratization` held by professor Ji Huang and released by the Election Research Center of National Cheng-Chi University, of 2006 Taipei and Kaohsiung Mayor Elections. Through the research and analysis, the study hopes to establish the voting model of Taipei voters and be a reference and supplement for future researches. First of all, by viewing the relationship between personal and social background of the voters and the four intermediary variables (ethnic identity, party identification, evaluation of candidates, and the election issues), we found that there is highly interpretative ability between provincial and the four intermediary variables. And the genders, ages, and education level have considerable interpretative ability, but the home income doesn¡¦t. Secondly, from the relationship among the four intermediary variables and the voting tendency, the study also found that the four variables intermediary variables have considerable high interpretation ability to interpret the voting tendency of Taipei voters, and ethnic identity and political parties are the most. Finally, the study analysis the voters personal and social background together with the four intermediaries and found that the two intermediary variables of ethnic identity and political parties are more significant to influence the voting tendency of voters. Therefore, the four intermediary variables which the study used are very good research variables, and they can be continually used to research the voting behavior of Taipei voters in the future.