Key: Win : Draw : Loss
| Date | Home | Away | Ref | ||
|---|---|---|---|---|---|
| 05/08/2017 | Charlton | 1 | 0 | Bristol Rvs | C Sarginson |
| 12/08/2017 | Plymouth | 2 | 0 | Charlton | J Brooks |
| 19/08/2017 | Charlton | 4 | 1 | Northampton | K Johnson |
| 26/08/2017 | Rotherham | 0 | 2 | Charlton | T Kettle |
| 02/09/2017 | Oldham | 3 | 4 | Charlton | R Joyce |
| 09/09/2017 | Charlton | 2 | 1 | Southend | C Ward |
| 12/09/2017 | Charlton | 0 | 3 | Wigan | C Breakspear |
| 16/09/2017 | Gillingham | 1 | 0 | Charlton | G Salisbury |
| 23/09/2017 | Charlton | 1 | 1 | Bury | D Whitestone |
| 26/09/2017 | Walsall | 2 | 2 | Charlton | C Boyeson |
| 30/09/2017 | Fleetwood Town | 1 | 3 | Charlton | S Stockbridge |
| 14/10/2017 | Charlton | 1 | 0 | Doncaster | R Lewis |
| 17/10/2017 | Oxford | 1 | 1 | Charlton | C Breakspear |
| 21/10/2017 | Bradford | 0 | 1 | Charlton | D Bond |
| 28/10/2017 | Charlton | 1 | 0 | AFC Wimbledon | B Toner |
| 18/11/2017 | Charlton | 2 | 2 | Milton Keynes Dons | A Woolmer |
| 21/11/2017 | Charlton | 2 | 1 | Rochdale | C Breakspear |
| 25/11/2017 | Scunthorpe | 2 | 0 | Charlton | K Johnson |
| 28/11/2017 | Charlton | 2 | 2 | Peterboro | J Brooks |
| 09/12/2017 | Charlton | 0 | 1 | Portsmouth | A Madley |
| 16/12/2017 | Blackburn | 2 | 0 | Charlton | G Eltringham |
| 23/12/2017 | Charlton | 1 | 1 | Blackpool | J Busby |
| 26/12/2017 | Southend | 3 | 1 | Charlton | D Drysdale |
| 29/12/2017 | Wigan | 0 | 0 | Charlton | T Kettle |
| 01/01/2018 | Charlton | 1 | 2 | Gillingham | O Langford |
| 06/01/2018 | Charlton | 1 | 0 | Oldham | L Swabey |
| 13/01/2018 | Bury | 0 | 1 | Charlton | M Salisbury |
| 20/01/2018 | Charlton | 3 | 1 | Walsall | S Oldham |
| 03/02/2018 | Charlton | 2 | 3 | Oxford | K Stroud |
| 10/02/2018 | Doncaster | 1 | 1 | Charlton | M Heywood |
| 13/02/2018 | Charlton | 1 | 1 | Bradford | N Kinseley |
| 17/02/2018 | Milton Keynes Dons | 1 | 2 | Charlton | R East |
| 24/02/2018 | Charlton | 0 | 2 | Shrewsbury | C Sarginson |
| 10/03/2018 | Peterboro | 4 | 1 | Charlton | B Huxtable |
| 13/03/2018 | Blackpool | 1 | 0 | Charlton | T Kettle |
| 17/03/2018 | Charlton | 0 | 0 | Fleetwood Town | M Heywood |
| 24/03/2018 | Charlton | 2 | 0 | Plymouth | J Busby |
| 30/03/2018 | Northampton | 0 | 4 | Charlton | G Ward |
| 02/04/2018 | Charlton | 3 | 1 | Rotherham | G Horwood |
| 07/04/2018 | Bristol Rvs | 1 | 1 | Charlton | A Davies |
| 10/04/2018 | AFC Wimbledon | 1 | 0 | Charlton | C Hicks |
| 14/04/2018 | Charlton | 0 | 1 | Scunthorpe | G Salisbury |
| 17/04/2018 | Shrewsbury | 0 | 2 | Charlton | D Handley |
| 21/04/2018 | Portsmouth | 0 | 1 | Charlton | M Heywood |
| 28/04/2018 | Charlton | 1 | 0 | Blackburn | R Jones |
| 05/05/2018 | Rochdale | 1 | 0 | Charlton | T Harrington |