The 4th International Conference on Life Science & Biological ngineering (LS&BE 2015) will be held in Nagoya, Japan during November 04-06, 2015. The aim objective of LSBE 2015is to provide a platform for researchers, engineers, academicians as well as industrial professionals from all over the world to present their research results and development activities in Networking and Digital Society. This conference provides opportunities for the delegates to exchange new ideas and application experiences face to face, to establish business or research relations and to find global partners for future collaboration. All the submitted papers in these proceedings have been peer reviewed by at least two reviewers drawn from the chairs of committees depending on the subject matter of the paper. Reviewing and initial selection were undertaken electronically. A joint committee meeting was held to resolve the final paper selection and a draft programme for the conference.