New guidelines for Cardiopulmonary Resuscitation (CPR) and Emergency Cardiovascular Care (ECC) were released in October 2010. The 2010 Guidelines changed a core concept of basic life support from traditional A-B-C (Airway, Breathing, Chest compressions) procedure to C-A-B (Chest compressions, Airway, Breathing) procedure. In the change of concept, it is emphasized that rescuer should start CPR with chest compression immediately. Japanese researchers contributed to the revision of the guidelines from a stage of establishment of a CoSTR(2005 International Consensus on Cardiopulmonary Resuscitation and Emergency Cardiovascular Care Science with Treatment Recommendations) which gives the guidelines theoretical evidences. It is expected for us to promote resuscitation science even in traditional theoretical field but also in the field of education, implementation, and team approach.