We consider the irrational part of the basic pattern drafting of the Geo-Ko-ri so that we want to design it more scientically. So there are problems which is found after we considered with comparison about the existingly basic pattern drafting of Geo-go-ri. (1) there is a difference between the practical and Calculation. (2) The part of the curved line was mad indistinctly There is a difference betweence the calculating expression and calculating value. (4) There are some parts which lack objectivity about the reference size. (5) The calculating method of Collar-width and Neck-Nidth are not formative and rational. These are items that we must consider and study further. Especially if we can make up of the scientific form in consideration of the formativeness focused on "git" I think it will make a great contribution to not only the standardization of the basic pattern of Geo-go-ri and the use of the use of education but also the manufacture of individual clothing the production by Auto CAD. Auto CAD.