Prime Minister Imran Khan is expected to inaugurate it.
Five hundred twenty exhibitors from fifty countries including Pakistan will showcase their defence products in the exhibition.
Director Coordination of Defence Export Promotion Organization Brigadier Waheed Mumtaz told our Karachi correspondent that the defence exports of Pakistan currently stand at three hundred million US dollars.
He said aircrafts JF-17 fighters and Mushak are central in the sales.
He said besides trade visitors, more than 262 high-level delegations from fifty-one countries including China, Russia, USA, France, Germany, Turkey, Poland, South Korea and host Pakistan are also all establishing their exclusive country pavilions at the EXPO center.