The teenager is being honoured at the UN headquarters in New York City, where she will address the UN Youth Assembly with a speech advocating global education.
The UN has designated July 12 as Malala Day.
Yousufzai has become an international figure as a symbol of resistance to the Taliban’s efforts to deny women's rights. She is also among the nominees for this year's Nobel Peace Prize.
Yousufzai was brought to Britain from Pakistan’s Swat Valley for specialist treatment after she was shot in the head at point-blank range by a gunmen last October.
She left a hospital in Birmingham in February following a surgery in which doctors mended parts of her skull with a titanium plate and inserted a cochlear implant to help restore hearing on her left side.
Some 500 youth leaders from 85 countries will be on hand in New York to hear Yousufzai speak. This will be her first public speech after the attack in October.