Early years interventions for pre-schoolers have been found to improve health throughout life. However, what is largely missing are early years programmes demonstrated to improve outcomes of importance for the health and wellbeing of Māori. Our proposed research is led by Māori and draws on mātauranga Māori and Western science. We will find out what constitutes effective kaupapa Māori early years provision that strengthens positive child behaviours that lead to more equitable opportunities for good health throughout life. Tamariki in six early years programmes will be assessed across 2 years for positive behavioural constructs that we have previously shown to be of relevance for Māori (e.g. tuakiri/Māori identity, self-control). Using tools validated in our earlier work, we will look for different pathways to change over time. Findings will help address the need for proven interventions for tamariki Māori that strengthen culturally relevant positive behaviours and can be rolled out nationally.