The Conference on Theory and Advanced Technology of Electrical Engineering was held in Chongqing from 23rd to 26th July, 2015. This conference was cosponsored and co-organized by Chongqing University and the State Key Lab of Power transmission Equipment & System Security and New Technology. The conference theme includes electromagnetic field and electromagnetic compatibility, new technology for signal detection and processing, new design for electrical equipment, bio-electromagnetics and application. There were more than 320 delegates from 59 universities, research institutes and enterprises participated in the conference.