Women's Refuge says an increase of 22% in the number of children being accommodated in safe houses during 2009, shows the message that "violence is not okay", is getting through.
The agency says more and more women are learning about what family violence can do to their children and want them to be safe.
It says domestic violence has finally been brought into the open.
Chief executive Heather Henare says more and more women are learning just how bad domestic violence is for their children and that they do not have to put up with it.
She says family violence statistics will continue to rise until people fully acknowledge just how bad the problem is in New Zealand.