On the second day of a visit to Australia, where he hopes to cement defence ties following the 2016 signing of a $38 billion megadeal to supply submarines to the Australian navy, Macron said the like-minded democracies should forge closer ties.
"We're not naive: if we want to be seen and respected by China as an equal partner, we must organise ourselves," Macron said in a speech at an Australian naval base.
Macron visited China in January, where he warned Beijing that its new "Silk Road" initiative should not be "one-way".
He then flew to India in March, where he committed to strengthen a defence partnership that has already seen New Delhi buy French warplanes in 2016.
"This new Paris-Delhi-Canberra axis is absolutely key for the region and our joint objectives in the Indian-Pacific region," Macron said.
His visit to Australia, only the second by a French president, comes amid heightened tensions in the Pacific, where France has numerous interests.
France has island territories spanning the Indo-Pacific: Reunion and Mayotte in the Indian Ocean, and Noumea, Wallis and Futuna and French Polynesia in the Pacific.
Australia and New Zealand have each separately warned that China is seeking to exert influence in the Pacific through its international aid programme, an allegation Beijing denies.