According to the South Korean presidential office, Kim hosted a dinner with South Korean President Moon Jae-in's special envoys on Monday, Yonhap reported.
It is believed to be the first time the North Korean Leader has met South Korean officials since he took office in 2011.
The meeting comes as a delegation of South Korean officials travelled to North Korea on Monday to discuss bilateral relations between the two rival neighbours and potential dialogue between Washington and Pyongyang administrations.
The South Korean envoys are also expected to put forward the President's wishes for nuclear disarmament in the Korean peninsula, as well as encouraging peaceful dialogue between both nations in the hope of restoring diplomatic ties, according to US media.
After the two-day visit to North Korea, the delegation will travel to the US to brief officials there on their discussions in Pyongyang.
The delegation's visit is the latest chapter in a remarkable detente achieved through the recently concluded Winter Olympics where North Korean athletes were accorded warm welcome.
The trip is in response to an invitation offered by Kim Jong-un's sister Kim Yo-Jong for South Korean President to visit Pyongyang.
Senior North Korean officials, led by Kim's sister, visited South Korea during last month's Winter Olympics.