Her husband was wearing an England shirt and hat, and was subjected to a torrent of abuse she described as "feral racism" filled with swear-words from some AB supporters.
"In the end, he got really angry and said stuff that he'll regret for a long, long time because he's never been that upset at a rugby match before," she said.
The woman said a young female English supporter sitting near her was near to tears and looked frightened by the abuse.
The complainant acknowledged that foul language would be heard at rugby games, but didn't accept that the language she heard on Saturday night was reasonable.
A spokeswoman for the Eden Park Trust said the matter was being dealt with internally, and security and log reports were being examined into the "unfortunate incident".
Nick Brown, general manager of public affairs for New Zealand Rugby, said the Applaud campaign was launched to tackle anti-social behaviour at rugby games.
"We want fans to cheer loudly for their favourite team and respect their opponents at the same time," he said.
"We are really sorry to hear that this English supporter's experience was spoiled by the behaviour of a few people in a match where the crowd was generally very well behaved."
