Cate Blanchett plans to move back home to Australia so her eldest son can be schooled in Sydney.

The acclaimed actress told a News Limited newspaper she wanted her eldest son, Dash, to be taught Down Under.

"When Dash starts at 'big school' next year we will be making a more concerted move to be back in our Hunters Hill home in Sydney," she told the paper. "I love our life back home."

Blanchett, who already has two sons, also suggested she and her husband, scriptwriter Andrew Upton, may consider a third.

"We make pretty good babies so we'll just have to see about that," she said.