Weeks of protests in Pakistan over the crudely made Innocence of Muslims film saw more than 20 people killed and caused serious damage in major cities.
Pakistan interior minister Rehman Malik said on Twitter the decision to allow access was due to huge public demand, and that the telecom regulator would install a firewall to maintain a block on unseemly content.
"There was a great demand to unblock YouTube from all sections of society... expect the notification today," Malik said.
"PTA (Pakistan Telecommunication Authority) is finalising negotiations for acquiring a powerful firewall software to totally block pornographic and blasphemous material," he added.
Internet Service Providers Association of Pakistan (ISPAK) said they have not yet received the notification, but welcomed the minister's announcement.
ISPAK convener Wahajus Siraj told AFP that when the ban first came into force, internet video traffic in Pakistan plummeted by up to 30 percent.
"It is a good development because many people, especially students and institutions, were using YouTube for education, and were facing difficulties as alternate websites were not as good," he said.
According to PTA there are 2.1 million internet subscribers in Pakistan