Tackling mental ill-health of the working-age population is becoming a key issue for labour market and social policies in OECD countries. OECD governments increasingly recognise that policy has a major role to play in keeping people with mental ill-health in employment or bringing those outside of the labour market back to it, and in preventing mental illness. This report on Denmark is the third in a series of reports looking at how the broader education, health, social and labour market policy challenges identified in Sick on the Job? Myths and Realities about Mental Health and Work (OECD, 2012) are being tackled in a number of OECD countries. It concludes that the Danish system has a number of strengths that have yet to be used in a more effective way, but also that quite a few changes are needed in order to raise the labour market particiption of people with mental ill-health.