The island's 11,000 people were evacuated last month when the island's volcano started erupting, covering much of the island in ash and killing crops.
RNZI reports the evacuees are currently in evacuation centres on the nearby islands of Santo, Maewo and Pentecost.
The government last week extended the state of emergency for another fortnight, but with the volcano settling down, a repatriation to Ambae could occur within a month.
UNICEF's Andrew Parker said the government is working tirelessly to plan for what will be another major challenge.