Abstract: In 1984 Mason Durie documented a framework for understanding Maori health, Te Whare Tapa Wha, which has subsequently become embedded in Maori health policy. This article presents a specific assessment framework, the Meihana Model, which encompasses the four original cornerstones of Te Whare Tapa Wha, and inserts two additional elements. These form a practice model (alongside Maori beliefs, values and experiences) to guide clinical assessment and intervention with Maori clients and whanau accessing mental health services. This paper outlines the rationale for and background of the Meihana Model and then describes each dimension: whanau, wairua, tinana, hinengaro, taiao and iwi katoa. The model provides a basis for a more comprehensive assessment of clients/whanau to underpin appropriate treatment decisions.