Collection of selected, peer reviewed papers from the 2013 4th International Conference on Material and Manufacturing Technology (ICMMT 2013), May 11-12, 2013, Seoul, South Korea. The 251 papers are grouped as follows: Chapter 1: Advanced Materials Engineering and Technology; Chapter 2: Advanced Mechanical Engineering and Design Technology; Chapter 3: Power System and Energy Engineering; Chapter 4: Instrumentation, Measurement and Testing Technologies; Chapter 5: Signal and Data Processing, Data Mining; Chapter 6: Mechatronics and Robotics Technology; Chapter 7: Modern Control and Automation Engineering; Chapter 8: Electronics and Integrated Circuits, Embedded Technology; Chapter 9: Information Technologies, Communication and Networks; Chapter 10: New Technologies and Methods in Civil Engineering and Environment; Chapter 11: Organization of Production and Engineering Management.