The border will close at midnight Saturday.
In his daily address to the nation Prime Minister Justin Trudeau made the announcement and also said that irregular migrants will be sent back if they try to cross anywhere along the border under a mutual agreement with the U.S.
Trudeau also announced funding for automakers to retool their lines in order to begin making medical equipment.
He said 5-hundred thousand Canadians have applied for Employment Insurance this week compared to just 27-thousand last week.
Trudeau says public servants are working around the clock to process the applications.
He ended by saying that this week has been difficult but it was also proof that Canadians are generous, kind and compassionate and that should give us hope.