2018年10月21號，國務院港澳事務辦公室公佈，鄭曉松因患抑鬱症20號晚喺澳門屋企墜樓身亡，終年59歲。
On October 21, 2018, the Hong Kong and Macao Affairs Office of the State Council announced that Zheng Xiaosong fell to his death at his home in Macau on the night of the 20th due to depression at the age of 59.