Presidential and Vice Presidential Election and Recall Act Article 14

When casting their vote, qualified voters shall present their national identification (ID) card to receive a ballot, unless otherwise specified.Qualified voters who have returned from a foreign country to exercise their right to vote shall receive a ballot by presenting their valid passport issued by the Republic of China.To receive a ballot, the qualified voter shall affix their signature, seal or fingerprint on the list of qualified voters. A fingerprint affixed by a voter on the said list shall be certified by the accompanying seals affixed by one administrator and one supervisor. If a person’s name is not on the list of qualified voters or their name is not identical to the name listed, that person shall not receive a ballot. However, if a discrepancy between the name on the said list and the name recorded on their national identification (ID) card is due to an obvious clerical error or a surname change related to marriage or divorce, the person shall receive the ballot once the matter is jointly verified by the chief administrator and the chief supervisor.After receiving a ballot, qualified voters shall cast their vote by themselves. However, voters who cannot cast their vote by themselves due to a disability, but who are able to express their will shall, upon their request, have a family member or companion accompany them to provide assistance or cast the vote on behalf of and according to the will of the voter. In the absence of a family member or companion and at the request of the voter, one administrator and one supervisor may together provide assistance or cast the vote on behalf of and according to the will of the voter.The Central Election Commission shall formulate regulations to prevent persons from casting multiple votes or impersonating a qualified voter.
中文原文 總統副總統選舉罷免法(新840809制定)第14條
選舉人投票時,除另有規定外,應憑本人國民身分證領取選舉票。
返國行使選舉權之選舉人應憑本人有效之中華民國護照領取選舉票。
選舉人領取選舉票時,應在選舉人名冊上簽名或蓋章或按指印,按指印者,並應有管理員及監察員各一人蓋章證明。
選舉人名冊上無其姓名或姓名不符者,不得領取選舉票。
但姓名顯係筆誤、因婚姻關係而冠姓或回復本姓致與國民身分證不符者,經主任管理員會同主任監察員辨明後,應准領取選舉票。
選舉人領得選舉票後,應自行圈投。
但因身心障礙不能自行圈投而能表示其意思者,得依其請求,由家屬或陪同之人一人在場,依據本人意思,眼同協助或代為圈投;其無家屬或陪同之人在場者,亦得依其請求,由投票所管理員及監察員各一人,依據本人意思,眼同協助或代為圈投。
為防止重複投票或冒領選舉票之情事,應訂定防範規定;其辦法由中央選舉委員會定之。

English translation for reference only; the Chinese text prevails. Not legal advice.