Dr. Wen Zhonglue obtained his Bachelor degree from University of Science and Technology ofChina in 2003 and Ph.D. from National Astronomical Observatories, Chinese Academy of Sciences(NAOC) in 2009. After that, he works at NAOC as a staff. His research interests include clusters of galaxies and galaxy evolution.Clusters of galaxies are the largest gravitationally bound systems in the Universe. They are one of important objects for the studies on many astrophysical processes, galaxy evolution and the large scale structure. In this talk, I introduce our works on identification of galaxy clusters and their properties. By using photometric redshifts of galaxies, we develop an efficient method to identify clusters from multi-band optical/infrared surveys and obtain the largest catalogue of clusters from the SDSS, SuperCOSMOS, HSC-SSP and WISE data. I also show some results based on our cluster samples, including the large scale structure, cluster dynamical state and radio emission.