| Date: | July 23 – 29 |
| Edition: | 5th |
| Category: | WTA International |
| Draw: | 32S/16D |
| Surface: | Hard |
| Prize Money: | $250,000 |
| Location: | Nanchang, China |
| Champs: |  Wang Qiang |
| Champd: | Jiang Xinyu / Tang Qianhui |
The 2018 Jiangxi International Women's Tennis Open was a professional tennis tournament played on hard courts. It was the 5th edition of the event, and part of the International category of the 2018 WTA Tour. It took place in Nanchang, China, from July 23 – 29, 2018.
| Event | W | F | SF | QF | Round of 16 | Round of 32 | width=85 | Q | width=85 | Q2 | width=85 | Q1 |
| Singles | 280 | 180 | 110 | 60 | 30 | 1 | 18 | 12 | 1 | |||
|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Doubles | 1 |
| Event | W | F | SF | QF | Round of 16 | Round of 32 | width=85 | Q2 | width=85 | Q1 |
| style=background:#ededed | Singles | $43,000 | $21,400 | $11,500 | $6,175 | $3,400 | $2,100 | $1,020 | $600 | |
|---|---|---|---|---|---|---|---|---|---|---|
| style=background:#ededed | Doubles | $12,300 | $6,400 | $3,435 | $1,820 | $960 |
| Country | Player | Rank1 | Seed | |
|---|---|---|---|---|
| China | Zhang Shuai | 30 | 1 | |
| China | Wang Qiang | 80 | 2 | |
 Poland | Magda Linette | 82 | 3 | |
 Japan | Kurumi Nara | 99 | 4 | |
 Russian Federation | Vitalia Diatchenko | 107 | 5 | |
| China | Zheng Saisai | 112 | 6 | |
| China | Duan Yingying | 114 | 7 | |
| China | Han Xinyun | 126 | 8 |
The following players received wildcards into the singles main draw:
Yang Zhaoxuan Zhang Shuai Zheng WushuangThe following players received entry using a protected ranking into the singles main draw:
Margarita GasparyanThe following players received entry from the qualifying draw:
The following players received entry as lucky losers:
Jana Čepelová → replaced by Ayano Shimizu
Bojana Jovanovski Petrović → replaced by Lu Jingjing Kristína Kučová → replaced by Lu Jiajing Peng Shuai → replaced by 
Jang Su-jeong Momoko Kobori
Ankita Raina Yang Zhaoxuan → replaced by Junri Namigata| Country | Player | Country | Player | Rank1 | Seed | |
|---|---|---|---|---|---|---|
| Japan | Eri Hozumi | Russian Federation | Valeria Savinykh | 153 | 1 | |
| China | Duan Yingying | China | Han Xinyun | 192 | 2 | |
 United States | Jacqueline Cako | India | Prarthana Thombare | 239 | 3 | |
 Australia | Naiktha Bains | China | Ye Qiuyu | 277 | 4 |
The following pairs received wildcards into the doubles main draw:
See main article: 2018 Jiangxi International Women's Tennis Open – Singles.
Wang Qiang def. Zheng Saisai 7–5, 4–0 ret.See main article: 2018 Jiangxi International Women's Tennis Open – Doubles.
Jiang Xinyu / Tang Qianhui def. Lu Jingjing / You Xiaodi, 6–4, 6–4