Consulate
Consulate General of Republic of China (Taiwan) in Nagasaki
Nagasaki
Japanese citizens do not need a visa for Taiwan. Show your passport at the border and stay up to 90 days.

JPN
Japan
TWN
Taiwan
No visa needed
People from listed countries can visit without a visa for up to 90 days.
Check your passport is valid for the whole stay, ideally six months beyond it.
Carry proof of onward travel and of funds; border officers can ask for both.
Note the maximum stay and count your days in Taiwan.
Your nationality decides whether you need a tourist visa.
How to apply
Documents required
How to apply
Documents required
How to apply
Documents required
How to apply
Documents required
Book an appointment before you go.
Consulate
Nagasaki
Best time to go: October to December is the best time, though typhoons can still occur. Spring is also pleasant but wetter. June to September is hot and humid, with temperatures above 30°C in lowland areas.

Taiwan is a self-governing island state off the southeastern coast of the Chinese mainland.
Going to Taiwan
Places close to Taiwan with simpler entry for you.
Japanese citizens do not need a visa for Taiwan. Show your passport at the border and stay up to 90 days.
Up to 90 days each visit with the no visa needed rule. Staying longer can mean a fine or a ban from coming back.
Taiwanese citizens do not need a visa for Japan. Show your passport at the border and stay up to 90 days.
Brunei, Israel, Malaysia, Philippines Singapore, and 5 more can enter without applying before they travel.
China, Hong Kong, Macau, Mongolia South Korea, and 3 more let japanese citizens in without applying before travel.
Check your passport is valid for the whole stay, ideally six months beyond it. Carry proof of onward travel and of funds; border officers can ask for both.
New Taiwan dollar ($). Carry some cash for arrival, especially if a visa fee is paid at the border.
Chinese.
It ranks #3 and reaches 159 destinations without applying ahead.
Reviewed by @snuck