See main article: 2018 Fed Cup Asia/Oceania Zone. The play-offs of the 2018 Fed Cup Asia/Oceania Zone Group II were the final stages of the Group II Zonal Competition involving teams from Asia and Oceania. Using the positions determined in their pools, the fourteen teams faced off to determine their placing in the 2018 Fed Cup Asia/Oceania Zone Group II. The top team advanced to Asia/Oceania Group I in 2019.
| Placing | Pool A | Pool B | Pool C | Pool D |
|---|---|---|---|---|
| 1 | ||||
| 2 | ||||
| 3 | ||||
| 4 | colspan=2 |
The first placed teams of the pools were drawn in head-to-head rounds. The winners advanced to the Asia/Oceania Group I in 2019.
The second placed teams of the pools were drawn in head-to-head rounds to find the fifth to eighth placed teams.
The third placed teams of the pools were drawn in head-to-head rounds to find the ninth to twelfth placed teams.
| Placing | Teams | ||
| Promoted/First | |||
| Third | |||
| Fifth | |||
| Seventh | |||
| Ninth | |||
| Eleventh | |||
| Thirteenth | |||