An estimated 3200 UK general practitioners (GPs) practise occupational medicine on a sessional basis.To assess the educational needs of GPs practising occupational medicine and participating in The Health and Occupational Reporting (THOR) network.A questionnaire survey of GPs participating in a national reporting scheme, recording occupational ill-health from general practice (THOR-GP). The questionnaire used scales derived from the syllabus for the Diploma of the Faculty of Occupational Medicine to assess the use of the THOR-GP website for continuing professional development (CPD). Questions were also asked concerning the attitudes and experience of these doctors to CPD in occupational medicine.The response rate was 73% (213/291). Only 22% of responders used the THOR-GP website for CPD. Lack of time was the most frequently cited reason for not using the site. The topics provided on the website which were rated least interesting also appeared as requests for further information in questionnaire returns.Online learning has the potential to fulfil the needs of GPs practising occupational medicine. The designers of material for online learning should actively manage and modify the material available in response to educational needs. Further research is required into the clinical and business outcomes of online learning for these doctors.