Abstract: Objective To study the anatomy characteristics of the insula,to provide precise date for anatomy of the insula. Methods Selecting 200(400 cerebral hemispheres) normal Chinese Han adults,they were divided into five groups,each guoup included 40 persons,harf male and harf female.They were scanned with 1.5 Tesla MR Scanner. The anatomy value of insula was outlined manually in Aquariusws software, and it was be calculated automaticlly. Results The average date of left and right anterior periinsular sulcus were (24.1±3.4)mm, (25.4±4.3)mm；The average date of left and right inferior periinsular sulcus were(44.5±3.5)mm, (45.0±3.2)mm；The average date of left and right superior periinsular sulcus were(62.4±7.3)mm、(63.1±7.2)mm；The average date of left and right central insular sulcus were (29.9±3.3)mm, (30.9±3.3)mm；The average date of left and right anterior insular point-frontal pole were (37.4±3.1)mm, (38.0±3.0)mm；The average date of left and right posterior insular point-occipital were (68.4±4.4)mm, (67.8±4.7)mm；The average date of left and right

Key words: Insula, Image anatomy, MRI, Normal adult