[2] He was the chief engineer and head of the Gansu Water Conservancy Bureau from 1947 till April 1949.
[2][3] In 1957, Huang was labeled a "Rightist" and persecuted by Mao Zedong for his criticism of the Sanmenxia Dam on the Yellow River.
[2][3] Then he was sent to the Poyang Lake, Jiangxi to do hard labor, and was transferred back to Tsinghua University in 1974.
During the Cultural Revolution, the students at Tsinghua University paraded him and other "reactionary figures" through the streets and beat them in public.
[2][3] He was buried on April 5, 2021 with his wife, Ding Yujun, at Fenghuangshan Cemetery, Area 10 Row 8 number 12, Changping District, Beijing, China.