The 2018 OEC Taipei WTA Challenger was a professional tennis tournament played on indoor carpet courts. It was the 11th edition of the tournament and part of the 2018 WTA 125K series, offering a total of $125,000 in prize money. It took place in Taipei, Taiwan, on 12–18 November 2018.
Singles main draw entrants
Seeds
1 Rankings as of 5 November 2018.
Other entrants
The following player received wildcards into the singles main draw: Joanna Garland Liang En-shuo Sabine Lisicki Zhang Ling Zheng Saisai
The following players received entry from the qualifying draw: Jang Su-jeong Tereza Martincová Elena-Gabriela Ruse Zhang Yuxuan
The following player received entry as lucky losers: Lizette Cabrera Ng Kwan-yau
Withdrawals
Jana Čepelová → replaced by Carol Zhao
Margarita Gasparyan → replaced by Lizette Cabrera
Ekaterine Gorgodze → replaced by Xun Fangying
Evgeniya Rodina → replaced by Danka Kovinić
Katie Swan → replaced by Ankita Raina
Sachia Vickery → replaced by Barbara Haas
Zheng Saisai → replaced by Ng Kwan-yau
Doubles entrants
Seeds
1 Rankings as of 5 November 2018.
Other entrants
The following pair received a wildcard into the doubles main draw: Lee Ya-hsuan / Liang En-shuo
Champions
Singles
Luksika Kumkhum def. Sabine Lisicki 6–1, 6–3
Doubles
* Ankita Raina / Karman Thandi def. Olga Doroshina / Natela Dzalamidze, 6–3, 5–7, [12–12], ret.