As digital mental health research and technology continue to grow, a systematic approach to quickly and safely translating digital innovation into Child and Adolescent Mental Health Services (CAMHS) is needed. Here, we provide an overview of the CAMHS Digital Lab, a service in London, United Kingdom, which integrates operational, clinical and research expertise to support digital discovery and translate research into practice. The service is organized into four workstreams: Population and clinical analytics; Data science and discovery; Digital therapeutics and assessment; and Education, outreach and training. This service provides a model for integrating digital innovation into mental health services which could be adopted elsewhere.