Key: Win : Draw : Loss
| Date | Home | Away | Ref | ||
|---|---|---|---|---|---|
| 05/08/2017 | Doncaster | 0 | 0 | Gillingham | D Whitestone |
| 12/08/2017 | Gillingham | 0 | 1 | Bradford | J Busby |
| 19/08/2017 | Milton Keynes Dons | 1 | 0 | Gillingham | T Kettle |
| 26/08/2017 | Gillingham | 3 | 3 | Southend | C Breakspear |
| 02/09/2017 | Gillingham | 1 | 2 | Shrewsbury | K Johnson |
| 09/09/2017 | Oxford | 3 | 0 | Gillingham | M Salisbury |
| 12/09/2017 | AFC Wimbledon | 1 | 1 | Gillingham | N Kinseley |
| 16/09/2017 | Gillingham | 1 | 0 | Charlton | G Salisbury |
| 23/09/2017 | Rochdale | 3 | 0 | Gillingham | E Ilderton |
| 26/09/2017 | Gillingham | 0 | 0 | Scunthorpe | A Coggins |
| 30/09/2017 | Blackburn | 1 | 0 | Gillingham | R Jones |
| 08/10/2017 | Gillingham | 0 | 1 | Portsmouth | C Sarginson |
| 14/10/2017 | Peterboro | 0 | 1 | Gillingham | D Whitestone |
| 17/10/2017 | Gillingham | 1 | 1 | Wigan | B Huxtable |
| 21/10/2017 | Gillingham | 1 | 2 | Northampton | R Joyce |
| 28/10/2017 | Rotherham | 1 | 3 | Gillingham | C Boyeson |
| 11/11/2017 | Gillingham | 1 | 1 | Bury | C Breakspear |
| 18/11/2017 | Walsall | 0 | 1 | Gillingham | A Haines |
| 21/11/2017 | Blackpool | 1 | 1 | Gillingham | D Drysdale |
| 25/11/2017 | Gillingham | 0 | 0 | Oldham | G Horwood |
| 09/12/2017 | Plymouth | 2 | 1 | Gillingham | D Handley |
| 16/12/2017 | Gillingham | 4 | 1 | Bristol Rvs | A Coggins |
| 22/12/2017 | Fleetwood Town | 0 | 2 | Gillingham | D Webb |
| 26/12/2017 | Gillingham | 1 | 1 | Oxford | N Kinseley |
| 30/12/2017 | Gillingham | 2 | 2 | AFC Wimbledon | R Lewis |
| 01/01/2018 | Charlton | 1 | 2 | Gillingham | O Langford |
| 13/01/2018 | Gillingham | 2 | 1 | Rochdale | L Swabey |
| 20/01/2018 | Scunthorpe | 1 | 3 | Gillingham | C Boyeson |
| 27/01/2018 | Gillingham | 2 | 1 | Fleetwood Town | B Huxtable |
| 03/02/2018 | Wigan | 2 | 0 | Gillingham | N Kinseley |
| 10/02/2018 | Gillingham | 1 | 1 | Peterboro | A Davies |
| 13/02/2018 | Northampton | 1 | 2 | Gillingham | C Breakspear |
| 17/02/2018 | Gillingham | 0 | 0 | Walsall | K Johnson |
| 20/02/2018 | Shrewsbury | 1 | 1 | Gillingham | C Hicks |
| 24/02/2018 | Bury | 2 | 1 | Gillingham | D Drysdale |
| 10/03/2018 | Portsmouth | 1 | 3 | Gillingham | C Boyeson |
| 24/03/2018 | Bradford | 1 | 0 | Gillingham | R Joyce |
| 29/03/2018 | Gillingham | 1 | 2 | Milton Keynes Dons | J Busby |
| 02/04/2018 | Southend | 4 | 0 | Gillingham | G Salisbury |
| 07/04/2018 | Gillingham | 0 | 0 | Doncaster | J Brooks |
| 10/04/2018 | Gillingham | 0 | 0 | Blackburn | T Harrington |
| 14/04/2018 | Oldham | 1 | 1 | Gillingham | M Salisbury |
| 17/04/2018 | Gillingham | 0 | 1 | Rotherham | D Whitestone |
| 21/04/2018 | Gillingham | 0 | 3 | Blackpool | C Hicks |
| 28/04/2018 | Bristol Rvs | 1 | 1 | Gillingham | O Yates |
| 05/05/2018 | Gillingham | 5 | 2 | Plymouth | B Malone |