1. Objectives This paper was written in order to understand the function of acupoints as Sasang Constitution. 2. Methods Through the concept of ${\ulcorner}$Seung-Gang-Wan-Sok(升降緩束)${\lrcorner}$, we could find out the function of some acupoints as Sasang Constitution. 3. Results and Conclusions 1) Some acupoints could be classified into four groups. These four groups are corresponded with four Sasang Constitutional groups 2) This four groups are supported by the concept of ${\ulcorner}$Seung-Gang-Wan-Sok(升降緩束)${\lrcorner}$. 3) The first group is for Soeumin(少陰人). The acupoints are 'Sangwan(上脘, CV13)', 'Chungwan(中脘, CV12)', 'Hwangsu(?兪, K16)', 'chonchu(天樞, S25)' and 'Wisu(胃兪, B21)'. These acupoints all have Seung(升: elevating Gi(氣))-function in their Oriental medical effects 4) The second group is for Soyangin( 少陽人). The acupoints are 'Kichung(氣衝, S30)', 'Choksamni(足三里, S36)', 'Sangohu(上巨虛, S37)', 'Hagoho(下巨虛, S39)', 'Haegye(解谿, S41) and 'hyonjong(懸鍾, G39)'. These acupoints all have Gang(降: descending Gi(氣))-function in their Oriental medical effects. 5) The third group is for Taeumin(太陰人). The acupoints are 'Oje(魚際, L10)', ' Taeyon(太淵, L9)', 'Taedo(大都, Sp2)', 'Taebeak(太白, Sp3)' and 'Nohoe(?會, TE13)‘. These acupoints all have Wan(緩: efferenting Gi(氣))-function in their Oriental medical effects. 6) The fourth group is for Taeyangin(太陽人). The acupoints are 'Kwanwon(關元, CV4)', 'Hawan(下脘, CVlO)’ and ‘Chungjong(中庭, CVI6)’. These acupoints all have Sok(束: afferenting Gi(氣))-function in their Oriental medical effects.