Home Secretary Amber Rudd told parliament that closing the 'Jungle' Calais migrant camp is in the UK's national interest and will help better protect borders.
She said the Le Touquet agreement, allowing British officials to check passports in France and vice versa, which has been questioned by some French authorities will be strengthened by the move.
Rudd said: "Clearing the camp isn't just about our legal and moral obligations. It is also in our national interest.
"By clearing the camp, we can help secure the future of the juxtaposed controls as well as playing our part to help those most in need in Calais."
She said that the UK has so far transferred 200 children from Calais to accommodation in the UK, including more than 60 girls, many at high risk of sexual exploitation.
But she said no new children arriving in Calais will be accepted into Britain adding: "It is important we do not encourage more children to head to Calais, risking their lives in the hands of traffickers."
But Shadow Home Secretary Diane Abbott said approximately 1,000 children are still to be processed from the camp.
"The men, women and children in the Calais camp were treated by the French and the UK like pawns but these are real people fleeing war and economic devastation who were living in appalling conditions," she said.
Teenagers gathered at a makeshift church in the Calais 'jungle' just days after authorities declared the operation to clear the camp over.
Those still left after the demolishing of the 'Jungle' camp were seen wrapped in blankets as they prepared to sleep rough.
The UK's French ambassador, Sylvie Bermann said the destruction of the Calais 'Jungle' will encourage refugees to seek asylum in France.