He became friends with young Chinese Christian leaders, including T. Z. Koo (Gu Ziren), an evangelist, and Y. T. Wu, founder of the Three-Self Patriotic Movement in China.
Wu was born in Guangzhou in 4 November 1893 to a family engaged in commerce.
Following the relocation of the Nationalist government to Taipei, Wu served as Governor of Taiwan from 1949 to 1953.
He has written novels using the Three Laws of Robotics invented by Isaac Asimov, including two entries in the Robot City series and the entire Robots in Time series.