In Taiwan’s current education system, students can study for more than 20 years. Standard public education typically lasts for 12 years, which includes 6 years of primary education and 6 years of secondary education. Undergraduate university degrees require about 4 years to complete, and advanced degrees can take as little as 1 year (master’s degree) and as much as 7 years (doctoral degree).
Please visit the following website for education statistics about Taiwan:
https://english.moe.gov.tw/np-76-1.html