The United Nations Security Council opened its meeting on Wednesday by honouring Sheikh Khalifa with a moment of silence.
UAE Ambassador to the UN Lana Nusseibeh then addressed the council, sharing the late president's legacy and achievements.
"A distinguished leader and a visionary man," she said. "Sheikh Khalifa devoted his life to his country and people and inspired his nation with his dedication, wisdom and humility".
She thanked the current Security Council president, US ambassador Linda Thomas-Greenfield, and the other members for their condolences and sympathy.
Sheikh Khalifa died last Friday aged 73.
Ms Thomas-Greenfield led the delegates in the moment of silence for Sheikh Khalifa, who she said was "a leader and a key figure in the history of his country."
Dozens of leaders and senior officials have travelled to Abu Dhabi in recent days to pay tribute to Sheikh Khalifa, who had served as president since 2004.