Abstract: Urban governance aims to construct a sound order. In accordance with economic development, the way of order discipline has changed from moral discipline to behavioral discipline and then to legal discipline. While the validity of legal discipline is influenced by subjective factors of law makers, technological progress can offset this flaw. The practice of using big data technology in urban governance adopts the method of data discipline to maintain urban order. Technology has always been a double-edged sword. It brings convenience, but also causes harm due to the selfishness of different members in human community. This is the alienation of technology. While big data plays an active role in constructing an orderly city and its discipline helps to create "absolute security" in a city, data discipline is based upon the premise of sacrificing privacy, which results in a kind of fear in "absolute security". The urban governance under the condition of big data cannot remove such fear in a short time. However, urban governance should ultimately restore to its people-oriented essence and technology should serve people better under moral discipline.

Key words: big data, urban governance, order discipline, data discipline