Accprdomg to the case study of Changhua and Kaohsiung counties for the party-politics impact on the faction politics, we find that after the presidential election of March 2000, because of the Legislate Yen became more powerful, KMT's local factions are getting more area-coalition、central coalition、central subgroups and central factionalization. In addition, although the faction identification still very study, the local factions has been appeared to be much more party-shifted and utilitarian. Regarding the relationship between faction and political party, due to the James Sung's effect, local faction and local politics also change into triple-party phenomenon including the town and county level. Most of the people who swift the party membership to the People first Party (PFT) are KMT and non-partisan. Under the circumstance of three-party politics, non-partisan's growth space is apparently constricted. In regard of the relationship between faction and socio-economic circumstance, in the rural and remote area, KMT and PFP's factions have been emerged the trinity coalition phenomenon with mafia and money politics. Besides, under the encouragement of the remarkable success of magistrate and presidential election in 1997 and 2000, DPP's central factions are getting more localized、newly allied、and expansive. In addition, the DPP local factions are changed to recruit more mafia and businessmen and became even more secularized, and very much likely turn into be one part of Taiwan local faction ecology. Those what cased very much likely turn into be one part of Taiwan local faction ecology. Those what caused reasons of DPP are the neo-patron-clientelism and politics-businessmen coalition effects, especially under the demand pressure of money politics and local faction expansion.