how can obtain visa to taiwan
Please visit below website to get visa informationh
in countries that do not have diplomatic relations with taiwan (i.e., those that officially recognizes mainland china), the consular office of taiwan is officially called the taipei economic and cultural office. this is the place where visa applications should be filed.
if you are a citizen of any EU country, or the US, Canada, Australia/NZ then you don't need a visa to enter Taiwan. You can simply fill out a form on arrival. But for most other countries it is better to get in touch with the nearest Taiwan Culture Office (even if that is in a different country to you). Try - and look for taiwan embassies overseas.