These are the proceedings of the International Conference on Electrical Information and Mechatronics (ICEIM2011), held on the 23-25 December 2011 in Jiaozuo (China), which served as a platform for the exchange of related expertise. ICEIM 2011 drew together researchers from various disciplines, such as Sustainable Electrical Information and Mechatronics. The 177 papers are grouped into the chapters: Mechanical Power Engineering, Automatic and Mechanics Engineering, Optical Electrical Magnetic and Composite Materials, Mechatronic Systems Modeling and Identification, Mechatronics Engineering and Applications, Mechanical Design and Manufacturing Technology, Sensors and Detection, Fault Diagnosis and Signal Processing, Image Processing in Engineering Design, Computer-Aided Design and Simulation, and Systems Analysis and Decision. The work serves as a briefing on the current state-of-the-art of this important topic.