The Family Protection Act, legislated in 2014, was drafted to provide safeguards for family members and applies specifically to women and children, but includes other family members like grandparents and nieces.
However, during a panel discussion on national television the minister, Mateni Tapueluelu, said he held concerns over the law.
Mr Tapueluelu said it was in contradiction to Tongan culture.
He pointed out the law would give a disobedient child subjected to physical discipline the right to charge parents.
