Its secretary Peter Conway told Coupfourpointfive it is engaging with key labour groups like the ILO and ACTU about what can be done to help Fiji.
"We have had several meetings of affiliates and are considering a range of options to support workers in Fiji.
We are in regular dialogue with ACTU. And we have been in contact with ILO asking them to support an investigation/mission. We have also conveyed our views to the NZ Government at both ministerial and officials levels."
Coupfourpointfive asked the NZCTU what it was doing, about the latest moves by the military dictatorship to crush trade unions with the introduction of its new Essential Industries Decree.
Conway told us: "The NZCTU is supporting a campaign in respect of human and trade union rights in Fiji. We are going through a process of preparing material for union members and discussing options for activity with our affiliates.
"We have said that before any industrial action is considered we would discuss that matter with members (obviously) but also employers and the NZ Government given the circumstances. Our preference is for combined pressure from workers, unions, employers and governments."
Conway has also welcomed news of an ILO delegation heading to Fiji saying "we have been calling for the ILO to get more actively involved so this is good news".
He is attending a meeting of Aviation unions in Auckland today and tomorrow to discuss the situation in Fiji.