Collection of selected, peer reviewed papers from the 2014 International Conference on Sensors, Instrument and Information Technology (ICSIIT 2014), January 18-19, 2014, Guangzhou, China. The 228 papers are grouped as follows: Chapter 1: Design and Research of Sensors, Chapter 2: Technologies of Measurements, Chapter 3: Equipment and Instruments for Measurements, Chapter 4: Testing, Monitoring, Detecting: Theory and Applications, Chapter 5: Signal and Data Processing, Computational Mathematics and Artificial Intelligence, Chapter 6: Communications and Network Technologies, Chapter 7: Database Systems, Chapter 8: Computer Software Engineering, Chapter 9: Computer Design and Researches in the Field of Engineering, Chapter 10: Robotics, Control and Automation Systems, Chapter 11: Electronic Devices and Embedded Systems, Chapter 12: Applied Information Technologies in Engineering Management