The party's ideology combines environmentalism with left-wing economic policies, including well-funded, locally controlled public services within the confines of a steady-state economy. Internationally, it is affiliated to the Global Greens.
The Green Party has co-leaders: one male and one female. James Shaw is the party's male co-leader. The party's female co-leader is Marama Davidson, who was announced as the new co-leader on 8 April 2018.
In the 2017 general election, the Green Party secured 6.3% of the party vote and returned eight MPs. This is down from 10.7% and 14 seats in the 2014 general election. In addition, the Green Party contests local government elections throughout New Zealand, including Auckland where it campaigns under the City Vision banner together with the Labour Party. It is currently the fourth largest political party in the House of Representatives, and has agreed to support the Sixth Labour Government.
The Green Party was founded to counter what it sees as the threats to the natural environment and environmental issues remain its main focus. In recent times, it has expressed concerns about mining of national parks, fresh water, climate change, peak oil and the release of genetically engineered organisms. The party also spoken out in support of human rights and against military operations conducted by the United States and other countries in Afghanistan and Iraq.
In its economic policies, the Green Party stresses factors such as sustainability, taxing the indirect costs of pollution, and fair trade. It also states that measuring economic success should concentrate on measuring well-being rather than analysing economic indicators.