| Champ: |  Dayana Yastremska |
| Runner: |  Wang Qiang |
| Score: | 6–2, 6–1 |
| Draw: | 32 |
| Seeds: | 8 |
| Edition: | 9th |
| Type: | singles doubles |
| After Year: | 2023 |
See main article: 2018 Hong Kong Tennis Open.
Anastasia Pavlyuchenkova was the defending champion, but chose to compete in Linz instead.
Dayana Yastremska won her first WTA Tour title, defeating Wang Qiang in the final, 6–2, 6–1.