Two referendums on submitting a United Nations membership applications were held in Taiwan on 22 March 2008, the same day as the presidential elections.
Taiwan, officially known as the Republic of China, had been a founding member of the United Nations (UN) until 1971, when the People's Republic of China took the Chinese seat. Since then, the country has sought to rejoin the organization.
The first referendum question, supported by the Democratic Progressive Party (DPP) of President Chen Shui-bian, asked whether voters agree that the government should seek United Nations membership under the name "Taiwan". The second referendum question, supported by the Kuomintang (KMT), which on the same day won the presidential election, asked whether voters supported "our nation" seeking to "return" to the United Nations and join other international organisations under "flexible and practical strategies", including joining as "Republic of China", "Taiwan", or any other name that aids success and national dignity.
Although large majorities voted in favour of both proposals, the referendums were invalidated as voter turnout was just 36%, well below the 50% required. In contrast, the simultaneous presidential elections had a turnout of 76%.
Proposal 5 was initiated by Yu Shyi-kun, former Premier and chairman of the Democratic Progressive Party. The topic was "Application to become a new member of the United Nations under the name "Taiwan""
Proposal 6 was first initiated by Vincent Siew, former Premier and Vice President.
Although the proposals referendums were both supported by one of the two major parties in Taiwan, they were both formally voter-initiated, rather than government-sponsored. While the KMT initiated one of the two referendums, it encouraged its voters to least boycott the DPP-initiated referendum, and expressed understanding if supporters chose to boycott both referendums. Although KMT officials such as presidential candidate Ma Ying-jeou and chairman Wu Po-hsiung received ballot papers for the KMT-sponsored referendum, their family and other KMT officials, such as chairman emeritus Lien Chan refused to take ballot papers for either referendum. Former president Lee Teng-hui did not take either ballot paper, which he said was because he "forgot" to bring the documentation, although reporters at the scene pointed out to him that he did not need documentation to vote. DPP officials, including president Chen Shui-bian, called on voters to vote in both referendums.
President Chen Shui-bian accused both the United States and the European Union of caving into Chinese pressure over the referendum.