Address: No.128, Sec. 2, Academia Rd., Nangang Dist., Taipei City 115, Taiwan
The simplest way (but more costly, about NT$1,000 or US$35, however should be less than US$50) to get to Academia Sinica by yourself from Taoyuan International Airport is by Taxi. A more economical way is to first take one of the buses to Tapei City center, then take a Taxi from there to the Activity Center, Academia Sinica.
A recommended choice is:
For more detailed information, you can refer to the transportation page from Taoyuan International Airport