Cardio Ankle Vascular Index (CAVI) is the parameter for the quantitative diagnosis of the atherosclerosis in the patients with hypertension. CAVI is simulating the stiffness parameter beta by the information of the pulse wave velocity, so CAVI is the stable parameter not influenced by the condition of the patients. In this paper, international cooperative study of CAVI was performed. Among the advanced countries, largest people in Russia died with cardiovascular events, and smallest people died with cardiovascular events in Japan. For the evaluation of the atherosclerosis, the relationship between the CAVI and aging was compared. Slope of the regression line between CAVI and Aging in a Japanese healthy person is smaller compared with Russian, suggesting that the Russian people showed rapid progress of atherosclerosis. In European Union (EU), the importance of obesity was increased more and more. Among E.U., worst group of obesity is Marta and Russia, and Czech, Lithuania, Belgium were in the second group. Thus, we evaluated the atherosclerosis in Czech, which exist in the center of E.U., as the typical example. In the analysis of an arteriosclerosis risk, it has become clear that existence of hypertension, diabetes and IHD had contributed to increase of CAVI. China has a long culture of food in the history. In this study, we had investigated the atherosclerosis in the people in the Jilin University, Changchun, China, and compared the data with Japanese people. CAVI in Chinese people showed increased value according to the Aging compared with Japanese. The smoker showed high CAVI. Surprisingly, the drinking did not have the effect in CAVI. Chinese who did not take meat showed larger value of CAVI. Chinese who did not take the fruit showed high CAVI. Unfortunately, criteria of obesity and metabolic syndrome are different, so that comparison is a little bit difficult. Development of atherosclerosis research may be desired for the peoples in the every countries health in future.