The Duke and Duchess of Cambridge will travel to the South Asian county this autumn for a week-long visit.
But the couple will reportedly not bring their children Prince George, Princess Charlotte and Prince Louis.
It is claimed this is due to the high terror risk in the country following a string of terror attacks.
A source told the Mirror: “The security will be robust and William and Kate’s teams will be taking no chances.
“It will be a challenge ensuring they are safe, which would be more complicated by George , Charlotte and Louis being there as well.”
The trip will be carried out at the request of the Foreign Office, as William follows in the footsteps of his mum and dad.
The tour of Pakistan comes more than 13 years after the last royal visit, when Prince Charles and Camilla travelled to the country in 2006.
Diana, Princess of Wales, also made the journey several times through her charity work.
The High Commissioner for Pakistan, Mohammad Nafees Zakaria, said the government and people of Pakistan welcome the announcement that William and Kate will visit in the coming months.
“The people of Pakistan still cherish and fondly recall the visits of Her Majesty The Queen to Pakistan during 1961 and 1997,” he said.
“The upcoming royal visit is a reflection of the importance the United Kingdom attaches to its relations with Pakistan.
“The two countries enjoy historical links which both sides wish to strengthen further.”
The Queen last travelled to the state in 1997, igniting controversy when she called on Pakistan and India to settle their differences, in an address to parliament in Islamabad.
When Charles and Camilla travelled to Pakistan, their visit was seen as one of the most perilous royal foreign tours for some time.
With details of where William and Kate will travel to yet to be released, the Foreign Office states on its website that “terrorists are very likely to try and carry out attacks in Pakistan”.
“Foreigners, in particular westerners, may be directly targeted,” it notes, adding how the country is in a “major earthquake zone”, and that the monsoon season runs from June to early October.
In recent months, there have been a number of terror attacks, including a bombing outside a shrine in central Lahore, as well as an attack by armed militants on the Pearl Continental Hotel in Gwadar, Balochistan.
Pakistan shares borders with Iran, Afghanistan, India and China – two of the world’s nuclear powers.
The Foreign Office advises against all travel to a number of areas in Pakistan including the city of Peshawar, the federally administered tribal areas, and the Karakoram Highway between Islamabad and Gilgit.