The Cook Islands opposition is questioning the timing of a visit by the Chinese ambassador to open a school only weeks out from the general election.

Members of the Democratic Party met with Chinese ambassador Wu Xi to raise concerns about the timing of her attendance, two weeks ago, at the hand over of the Chinese-funded $NZ14 million Apii Nikao school project.

The party's deputy leader James Beer said it was irregular and improper for another country to provide such donations so close to an election and it seemed like part of a campaign tactic by the Cook Islands government.

Mr Beer said his party also raised with the ambassador the $NZ7 million worth of donations made by China during the 2014 election campaign, and the effect that had on the democratic process.

The Cook Islands general election is scheduled to be held on June the 14th.