Indonesia's Foreign Minister, Retno Marsudi, says the country is ushering in "a new era" for Pacific engagement.
This week Indonesia is holding a major Pacific trade show in New Zealand, bringing together dozens of officials from across the region.
Indonesia was also signing cooperation agreements with Niue and Cook Islands on Friday
Ms Marsudi said Indonesia faces many of the same challenges as the Pacific, like the climate crisis.
"In facing all these challenges and in overcoming these threats and fears, let me assure you that Indonesia is your friend and we are all one family. Join me, we can meet those challenges by building a stronger, inclusive partnership that benefits us all."
Retno Marsudi said Indonesia's so-called "Pacific Elevation" will promote its shared trade and cultural links with the Pacific.