Electoral system is an important mechanism for the development of democratic politics and local factions is developing and growing under the election process, that both had an impact on party politics. This article is starting from the shortcomings of society to study the evolution of our electoral system, the operation of local factions and the connection of political parties.Although China's Legislative Yuan election system had been changed to ”single-member district two-vote system”, the election atmosphere is obviously improvement. However the influence of local factions still exists for electoral system. Especially, in the case of the county's lection system remaining ”complex constituency single non-transferable voting system”, it is impossible to prevent the shortcomings occurred in the past. The only solution is to review and reform the electoral system once again. When the disappearance of local factions of the adverse effects for electoral system and selected elite of the people in power honest is achieved, it will be a blessing to the people.