A survey commissioned by lobby group Family First shows support for the automatic blocking of porn by internet providers.
Four out of five people surveyed say internet providers should be required by the government to offer filters to block pornographic material.
While 70 per cent say the providers should automatically block pornography unless the customer opts out by turning off a filter.
"Society is starting to catch up with the science on the harms of pornography, and are now calling for better support and protection of families and young people," says Bob McCoskrie, National Director of Family First NZ.
About 62 per cent of adults say they have come across pornography online, when not seeking it out, while 91 per cent say that it is too easy for under 18s to access online pornography.
"Thanks to the availability, affordability and anonymity of the internet and smartphones, young children are exposed to what used to be referred to as hard-core - but now mainstream - pornography at an alarming rate. Parents are crying out for help," says Mr McCoskrie.
The poll of 750 people was undertaken by Curia Market Research in April.