"(I want) to convince all our partners that tensions, and trade tensions in particular are bad for everybody," Macron told the French in a televised address.
"We must succeed in reaching a de-escalation, stabilize things and avoid this trade war which is already taking place everywhere," he added.
Macron said G7 countries should also engage in economic stimulus to prevent world economies from falling into recession.
"We must find new ways to launch real stimulus, stimulate growth," Macron said, pointing at rock-bottom interest rates which he said should spur countries with budgetary room for maneuver to invest in education and job-creating initiatives.