Taiwanese language (a.k.a. Taigi) was the major language in Taiwan before World War II. However, after World War II, Taigi was forbidden due to government policy. Taigi may die out within 30 years if we do not take action. Therefore, I have started to use Taigi for astronomy education since 2020. This action not only attracts people to use Taigi, but also attracts people who have never been interested in astronomy to learn astronomy. I will show what I have done since 2020.