Addressing more than 65,000 young people in Martyrs Stadium, Francis spoke of forgiveness and reconciliation, themes that have dominated his visit to the country where armed conflict has killed and displaced millions of people over the past decades.
Addressing the stadium, the pope urged the crowd to build a better future for the church and their country.
"You are part of a greater history, one that calls you to take an active role as a builder of communion, a champion of fraternity, an indomitable dreamer of a more united world," he said.
"Never give in to the persuasive but poisonous temptations of corruption," he said in Italian, which was translated into the DRC's official language French.
The pope also asked the crowd to chant 'no to corruption' after him.