Abstract
In $\ulcorner$Yingshu(靈樞)$\lrcorner$, $\ulcorner$Sumun(素問)$\lrcorner$ and $\ulcorner$Najing(難經)$\lrcorner$, there are differences in viewing FiveSu-point(五輸穴) and its practical application in treatment. The following conclusions are induced from these different point of views. 1. Fundamental features of FiveSu-point are shown in$\ulcorner$Yingshu(靈樞)$\lrcorner$ 2. In $\ulcorner$Internal classic(內經)$\lrcorner$ and $\ulcorner$Najing(難經)$\lrcorner$, it seems attachment that FiveSu-point is identical to the Five Elements, but there are differences in using the Five Elements sangsyang-sangguk in treatment. 3. There are clear differences between $\ulcorner$Internal classic(內經)$\lrcorner$ and $\ulcorner$Najing(難經)$\lrcorner$ in attachment of FiveSu-point and Fourseasons. Differences are shown in each chapter of $\ulcorner$Yingshu(靈樞)$\lrcorner$. 4. Different application of FiveSu-point's various cases is shown in $\ulcorner$Yingshu(靈樞)$\lrcorner$, $\ulcorner$Sumun(素問)$\lrcorner$ and $\ulcorner$Najing(難經)$\lrcorner$. 5. Different application of FiveSu-point in $\ulcorner$Yingshu(靈樞)$\lrcorner$, $\ulcorner$Sumun(素問)$\lrcorner$ and $\ulcorner$Najing(難經)$\lrcorner$ is due to different historical background.