The development of Child and Adolescent Mental Health Services (CAMHS) that meet the needs of Māori rangatahi(Indigenous people of Aotearoa/New Zealand, 12–19 year olds) is desirable. The Tomo Mai study investigated the acceptability of CAMHS access and delivery to Māori rangatahi as determined by those who accessed CAMHS. The study aims were to investigate barriers to Māori rangatahi access to CAMHS and investigate what would constitute a good service to Māori rangatahi as defined by Māori rangatahi.This study represents the first in depth investigation into the acceptability of CAMHS for Māori according to Māori rangatahi. It proposes a culturally appropriate framework to contribute to CAMHS improvement and advocates for a CAMHS delivery and workforce with the ability to offer these processes. The results are pivotal to the development of an evidence-based framework for improving access to CAMHS for Māori rangatahi and therefore contributing to service improvement and better health outcomes for this population.