Last date for submission of paper: unknown; Contact person: Gretchen Liu; On behalf of the Organizing Committees, it is with great pleasure that we welcome you to the 2020 3rd International Conference on Computer and Communication Engineering Technology (CCET 2020). It is to be held in North China University of Technology (NCUT), located on the western side of Beijing, China during August 14-16, 2020. Thanks to the support from North China University of Technology, the past 2 CCET conferences were held in North China University of Technology successfully. CCET 2020 is sponsored by School of Information Science and Technology, North China University of Technology (NCUT).