Cardiopulmonary resuscitation with use of Automated External Defibrillator(AED) is important for the resuscitation of the patients in cardiac arrest and the significance of training for this is increasing. In Korea, the installation of AED is mandatory in governmental offices and public facilities by legislation; however, the training of this is absolutely lacking, so the demand for simulators for the training of equipment use is increasing rapidly. In this study, Cardiopulmonary resuscitation and AED simulator for patient resuscitation training is developed. This simulator has not only mechanical structures such as chest, respiratory tract and head structures, but also electrical means such as electrocardiograph(ECG) signal generator, AED shock sensing circuit and software for the patient resuscitate scenarios. The functions of the electrical circuits are verified through the commercial AED kit. The developed training simulator can be applied for the Sudden cardiac arrest patient resuscitation training.