Legislative Yuan elections

The delimitation of the single-member constituencies within the cities and counties was initially a major political issue in the early years, with bargaining between the government and the legislature. Of the 15 cities and counties to be partitioned (the ten others have only one seat), only seven of the districting schemes proposed by the CEC were approved in a normal way. The eight other schemes were decided by drawing lots: "Taipei and Taichung cities and Miaoli and Changhua counties will adopt the version suggested by the CEC, while Kaohsiung city will follow the consensus of the legislature. Taipei county will follow the proposal offered by the opposition Taiwan Solidarity Union, Taoyuan county will adopt the ruling Democratic Progressive Party's scheme, and Pingtung county will use the scheme agreed upon by the Non-partisan Solidarity Union, People First Party, Kuomintang and Taiwan Solidarity Union."[1]

Under the Article 35 and 37 of the Civil Servants Election and Recall Act, the electoral constituencies are to be revised every ten years based on population of quota by the end of two years and two months before the tenure of current legislators ends, which is obtained by household investigation. The Central Election Commission reviews the boundaries then submit the proposal of altering electoral districts to the Legislative Yuan 20 months before the election for final consent and announcement.

Six seats are reserved for indigenous peoples. They are elected by single non-transferable vote in two 3-member constituencies for lowland aborigines and highland aborigines respectively. This system did not fulfil the promise in the treaty-like document A New Partnership Between the Indigenous Peoples and the Government of Taiwan, where each of the 13 recognised indigenous peoples was to get at least one seat, and the distinction between highland and lowland abolished.

Seats are allocated using the largest remainder method with the Hare quota which, with 34 seats, is 2.9412%. A party's vote share must exceed a threshold of 5% to win any seats. Votes for parties which do not pass the threshold are first excluded. The vote share for the remaining parties are calculated. A party is allocated one seat for every 2.9412% of votes. The remaining seats are allocated in succession to the party with the largest remainder.

For each party, at least half of the legislators elected under this system must be female. Therefore, with an odd number of seats, females will always outnumber males.