The public service supports:
— the Government to develop and implement its policies, deliver high-quality and efficient public services, and meet the needs of New Zealanders; and
— constitutional and democratic government, and acts with a spirit of service to the community and in accordance with the law.

Section 11, Public Service Act 2020 — New Zealand Legislation

The public service supports current and future governments to:

Achieve outcomes — improve these outcomes through the services provided by individual organisations, and also by joining up around critical issues or priorities identified by the Government.

Improve services to provide both face-to-face and digital services that are easy and convenient to interact with and are fully organised around peoples needs.

Promote democratic and open government improving transparency, increasing civic participation and using new technologies to make the government more open, effective, and accountable.

Support the Crown in its relationships with Māori — developing and maintaining the capability of the Public Service to engage with Māori and to understand Māori perspectives.