Labour would try to resolve this through adjustments to the Pacific quota system - in which people get residency through a ballot - or by making other changes in immigration rules.
The Minister of Immigration, Michael Woodhouse, was sceptical about the proposals.
"I think it's fair to say that those who come into New Zealand as adults should not come with the expectation that they're able to bring their adult siblings or other family members with them."
Mr Mallard said the policies targeted at Pacific groups were unlikely to increase the total number of migrants coming to New Zealand, and would not come at the expense of any other ethnic group.
Labour would also crack down on migrant exploitation. The new immigration policy would require employers to pay migrant workers a living wage ($18.80 an hour) and seasonal workers $1.50 more than the minimum wage, which is currently $14.25 an hour.
Labour's immigration policy
*Make residency process easier for highly skilled migrants who accept jobs in regional centres.
*Use the immigration points system to manage number of migrants entering the country on work visas.
*Form ministerial group to review Pacific Island immigration issues, review Pacific quotas and improve family reunification.
*Progressively increase refugee quota from 750 to 1000.
*Reduce the number of migrants on temporary working visas for long periods.
*Require employers to pay migrant workers a living wage ($18.80/hour), after accommodation deductions.
*Ensure seasonal workers are paid at least $15.75 an hour, not including accommodation benefits.