"Consistent with the objectives of the purchases announced on 28 September, the Bank is now setting out how it intends to unwind this portfolio in a way that is timely but orderly," the Bank of England said in a statement.
It added that it intended to "make gilts in the portfolio available to interested buyers from 29 November".
The bank said the sale would be done in a way that was "orderly to ensure it does not trigger renewed dysfunction".
"With this in mind, the Bank’s sales will commence not at a fixed pace, but will be designed in a demand-led way that is responsive to prevailing market conditions," it added.
On September 23, former Prime Minister Liz Truss and her chancellor Kwasi Kwarteng sparked market turmoil with a debt-fuelled, tax-slashing mini-budget.
The budget spooked markets and caused UK borrowing rates to soar and the pound to plunge to an historic low.
The BoE launched an emergency intervention to purchase the long-dated state bonds and avert a worsening financial catastrophe, while warning that this intervention would be temporary.
The resignation of Kwarteng and then of Truss then contributed to bringing down long-term borrowing rates and causing the pound to rebound.