In China, there are more than 230 million people with cardiovascular disease, and 550 000 individuals experience cardiac arrest every year. The survival rate of out-of-hospital cardiac arrest is less than 1% in China (compared with 12% in the United States). Early initiation and good quality of cardiopulmonary resuscitation (CPR) by bystanders and automated external defibrillator use are crucial for saving patients in cardiac arrest. However, the implementation rate for bystander CPR in China is low (4.5% in 8 large and medium-sized cities around China, 11.4% in Beijing, and 4.2% in Shanghai, vs 46.1% in the United States, 29% in Canada, 46%-73% in Sweden, 32.2% in Japan, and 21.2% in Australia), and the quality is also poor, which is reflected by the low survival rates following bystander CPR in China.1 In addition to laws, culture, and publicity, the lack of dissemination of CPR training among the lay public is a critical cause for the low rate of bystander CPR. In the United States, 13.1 million persons received CPR training in 2012.2 However, the prevalent training rate in China is less than 1% (33% in the United States, 40% in France), and skill retention training is also rare.2,3