Government support for agricultural producers across the OECD last year totalled US$227 billion ($NZ281b), or 18 per cent of total farm incomes - a record low linked to high commodity prices.
New Zealand's low level of government support was followed by Australia, at 3 per cent of farm income, and Chile, at 4 per cent.
OECD members with higher than average support included the European Union, at 22 per cent of farm income, with Norwegian producers receiving the most support, at 60 per cent.
The OECD said growing global food demand, higher prices, greater market volatitilty and increasing pressure on resources were arguments for moving beyond the status quo.
It said countries should focus on improving farm productivity, sustainability and long-term competitiveness, rather than policies that distort markets.