Introduction Currently the applications of computer science are filled with our daily life. So the computer system security has become very important. Therefore, the purpose of this conference is to provide a meeting forum for outstanding researchers to discuss with computing technology, biometric technology, and information security research. The conference not only covers the biometric identification, biometric authentication and information security related technologies, but also includes grid computing and cloud computing and other related issues. Meanwhile, we devoutly wish participants to learn the basic theory of a gradual approach, practical experimental data, new business models, and the latest academic trends from this conference. Following the traditions of previous successful ISBAST conferences, the objective of ISBAST-13 is to provide a forum for scientists and engineers in academia and industry to exchange and discuss their experiences, new ideas, research results, and applications about all aspects of biometric security technology and basic theoretical approach. ISBAST-13 is sponsored by IEEE Computer Society (Taipei Section). ISBAST 2013 will be held in Chengdu, with a focus on two broad areas of Computing and Security Technologies. Chengdu is a beautiful city and there are many places for sightseeing, such as Giant Panda Breeding Research Base, Giant Buddha, Jiuzhaigou National Park, etc. The conference of ISBAST 2013 will be organized by the Southwest Jiaotong University and National Taiwan University of Science and Technology.