Ontario Attorney General Yasir Naqvi will be proposing legislation to establish safe zones around health facilities.
Naqvi said the move comes after a rise in confrontations outside the Morgentaler abortion clinic here in Ottawa.
Naqvi said women have the constitutional right to control their bodies, and the right to privacy.
"It is critical that those protections be enshrined in law to provide consistent protection across the province," he told a news conference.
"In an increasingly-polarized society, it is critical that we protect a woman's fundamental right to chose."
Naqvi noted that several other provinces have similar laws in place.
Ottawa city councillor Catherine McKenney is pleased the government is moving quickly.
McKenney said the number of incidents at the clinic has jumped over the past few months.
"I started to receive many, many messages from women across the city with very similar stories about harrassment and how they were harrassed and, in many cases, were assaulted," McKenney said.
"I will always argue that anyone has the right to protest - bu no one has the right to single out, individually, women accessing health care services."
Ottawa Mayor Jim Watson said the province had reacted quickly after his letter of complaint earlier this month.
"We knew that we didn't have the tools in our toolbox at the city to prevent what was going on," Watson said.
Naqvi said he plans to consult widely and hopes to have the legislation ready for consideration in the fall.