New Zealand First is committing to increasing the funding to St John Ambulance's cost from 70 per cent to 90 per cent if re-elected.
Leader Winston Peters said it was "a crying shame" one of New Zealand's emergency services relied on charity to provide a service that all Kiwis needed in times of crisis.
The Ministry of Health and ACC fund around 72 per cent of the operating costs of St John. The remainder is part funded through part-charges and donations.
NZ First would increase this funding to 90 per cent and has made it a bottom line heading into the election on October 17.
Peters called this "common sense".