UKUI is a new desktop environment for GNU/Linux operating system. It's best known to be the user interface of Ubuntu Kylin, one of official Ubuntu Flavors, hence we can guess the name stands for Ubuntu Kylin User Interface (hence I still didn't find any source about it). Along with it, of course, Ubuntu Kylin 18.04 LTS has been released last April with the latest UKUI. This short overview introduce both the UKUI and the Ubuntu Kylin 18.04 in brief about how they look and what they bring. Enjoy!