国内对采用自动控制、信息与网络技术、人工智能等技术构建数字园区的工作已经启动，人们对今后数字城市的构建与发展给予很大的关注。从系统科学的观点出发，论述了数字城市是一类开放的复杂巨系统，可以用处理开放复杂巨系统的综合集成法(metasynthesis)来处理数字城市这类的系统。

Recently, many people pay attention to design and construct various kinds of systems for digital city by means of automatic control, information and network technology as well as artificial intelligence in domestic cities and areas.

In this article, from system science point view, that a digital city is an Open Complex Giant System (OCGS) by the author is proposed. And the “ metasynthesis from qualitative opinion to quantitative understanding” which is the methodology of OCGS could be applied for dealing with digital city.