PARIS – Speaking at the historic Palace of Versailles, Macron said he planned to cut the number of lawmakers by a third.
Doing so would produce a more efficient government and put France on a “radically new path”, said Macron.
The French president says he has a broad mandate after sweeping wins in presidential and parliamentary elections this year.
If his proposed changes were not passed by parliament within a year, he said he would take the decision to a referendum.
In his 90-minute speech, the 39-year-old leader vowed to return a “collective dignity” to France.
“In the past, procedures have taken preference over results, rules over initiative, living off the public purse over fairness,” he said.
The proposed cuts would reduce the number of National Assembly members from 577 to 385, and the numbers of Senate members from 348 to 232.
He also said:
• The European Union had “lost its way” in the past 10 years amid growing bureaucracy – a solution was a “new generation of leaders”
• France’s electoral system would be changed to allow more proportional representation, so more voices would be heard at government level
• France’s state of emergency, put in place after terror attacks, would be removed by the autumn
Mr Macron is not the first president to convene a session at Versailles, the grand 17th Century palace outside Paris built by Louis XIV, “the Sun King”.
The decision to convene Congress at the palace has come in for criticism, however, and has provided further material for critics of Macron who have accused him of aloofness.
While he engaged freely with the press during his electoral campaign, he has made little contact since, and will not conduct the traditional presidential interview for the 14 July national holiday, Bastille Day.
Three parties, including Jean-Luc Mélénchon’s far-left France Unbowed, boycotted the event. Mr Mélénchon accused Macron of “crossing a line with the pharaonic aspect of his presidential monarchy”.
The front page of Monday’s Libération showed an image of Macron as Jupiter, the god of gods, holding forked lightning. Expressing concern, the centre-left newspaper said the session in Versailles was the latest manifestation of the president’s authoritarian nature.
Mr Macron’s La République en Marche (LREM) party began life only in April 2016, but the former finance minister swept to victory in the second round of the presidential election on May 7.
A month later, his party and its allies went on to claim 350 of the 577 seats in parliamentary elections, a win he says has given him the mandate to push through wide-ranging social and economic reforms.
Meanwhile, police have confirmed that a suspected far-right extremist has been charged with plotting to kill Macron at the Bastille Day parade later this month.