The legislation is being piloted by 34-year-old Marlene Schiappa, a feminist and early supporter of French President Emmanuel Macron who wants to tackle sexist male attitudes in public spaces.
"It's completely necessary because at the moment street harassment is not defined in the law," she told RTL radio on Monday in an interview to outline
the law, which is to be voted next year.
The escalating scandal over Weinstein's alleged sexual assaults on a string of actresses -- including four French actresses who have revealed their
encounters with the producer -- has made the issue of sexual harassment resurface in France.
The #MeToo hashtag has encouraged thousands of women around the world to share their experiences of abuse on Twitter, with French women also using #balancetonporc ("Expose the Pig").
Schiappa, asked about the difficulty of drawing a line between street harassment and flirtation, replied: "We know very well at what point we start feeling intimidated, unsafe or harassed in the street."
She cited examples such as when a man invades a woman's personal space -- "by talking to you 10, 20 centimetres from your face" -- or follows a victim for several blocks, or "asks for your number 17 times."
Many women's rights groups want the new law to ban cat-calling and impose fines on those caught in the act.
However Schiappa has said she personally was against including the act of wolf-whistling on a list of banned actions.
It remains to be seen whether it will be part of the new law or not.
A cross-party taskforce composed of five MPs has been asked to work with police and magistrates to come up with a definition of harassment that can be enforced by officers on the streets.
"The level of the fine is part of our discussions," Schiappa said, adding that neighbourhood police would act on complaints brought to their attention by women.
"The symbolic value of laws that outlaw street harassment is very great," she said.
The legislation will include provisions such as lengthening the amount of time women have to lodge sexual assault complaints dating from their childhood and toughening laws on sex with minors.
Macron weighed in on the subject of sexual harassment during a televised interview on Sunday, saying: "What adds insult to injury is... the silence, the taboo. Today, too often, (women) don't press charges because they don't dare to."
Addressing the Weinstein scandal, he said: "It's good that (women) are speaking out," adding that they need to understand that the shame rests with
their tormentors and not with them.
The "Expose the Pig" hashtag was created by Sandra Muller, a journalist who recounted her own experience of workplace harassment and encouraged other women to come forward.
She told Franceinfo radio that she had stayed silent about her own experience with a newsroom boss some years ago.
"There's a kind of omerta," she said. "It's time that we lance the boil."
Raphaelle Remy-Leleu of the advocacy group Osez le Feminisme (Dare to Be Feminist) told AFP: "I hope that tolerance will decrease after people become more aware" of sexual harassment.
"But there's a lot of work to be done," she said.
A 2014 French government study concluded that one in five women would experience sexual harassment at work in the course of their careers.
Only five percent of cases make it to the courtroom, the study found.