This article mainly discusses about the development of Taiwan radio gymnastic exercises from three devices: modernity, nationality and war mobilization. The radio gymnastic exercises at morning make people work on modern time rule, which is matched with urban lifestyle. During the 1930s, radio gymnastic exercises first appeared in Taiwan, which was exactly the developing time of Taiwanese urban and popular culture. After 1930s, the general assemblies of radio gymnastic exercises had been held every summer in Taiwan, and also received the broadcast form Japan, doing radio gymnastic exercises with the whole empire. With the transmission of radio wave, the masses had had the experience of simultaneous. The radio gymnastic exercises and other new gymnastic exercises after the middle of 1930s were synchronized with the whole empire, was the examination and the expression of loyalty.