The global information services market value grew from US$877.5 billion in 2017 to US$113.9 billion in 2022, with a compound annual growth rate of 4.6%. Thanks to the development of the IoT applications, the demand for various sensing devices and middleware of intelligent networks also heat up, and the growth continued to expand in scale. Therefore, global software market value grew from US$66.1 billion in 2017 to US$899.1 billion in 2022, with a compound annual growth rate of 5.9%. This report provides an overview of the global IT software service market in the areas of system integration, data processing, information software, cloud service, and information security; a look into highlighted topics in AI, information security, and financial technology; examines the future outlook of the IT software service and market.