Understanding the mystery of dark matter is one of the biggest challenges in physics today. Direct detection of dark matter using low background underground detectors is one of the most promising path allows us to probe the nature of dark matter and the new physics beyond the Standard Model. Several detector technologies have been developed over the past decades. In this talk, I will focus on the dual-phase xenon Time Projection Chamber which take on leadership role in racing of hunting dark matter particles. The XENON1T experiment, which is the largest running liquid xenon detector for searching dark matter at Gran Sasso underground laboratory, sets the world leading limit on WIMP (Weakly Interacting Massive Particles) - nucleon scatter cross section based on this novel technology. The detector has been running in a stable condition for more than one year. The design and operation of the detector, as well as data analysis will be covered in this talk.

After obtaining the PhD from Shanghai Jiao Tong University in Chinawith the PandaX expeirment, Yuehuan worked for three years at University of Zurich,on design of the XENON1T detector, analysis of the XENON100 and XENON1T data,optical Monte Carlo simulations, event vertex reconstruction algorithms, and qualificationtests of the PMTs for XENONnT. He is currently a postdoc scholar at University of Californiaat San Diego working on the XENON1T experiment.