This 1s a biblographical study oi the Sinjeong Jasu(~l~,-Jj 4;) and the statistical analysis of the Itizjin type[%E, 1. The Siizjeolzg Jasu was con~piled by Seo illyeo~g-Eung at the gerod of AD 1772. The GJ-ujang-gag(&&M : The Royal Lihrary Collection) of the Seoul National University Library has been l.;ept one volume of original manuscript of the Si~zjeoulcornerzgJ asu. This book is a record of ;he Inijin type. The compilatiol~ 01 this record is like the chas~cter dictionary. The number of rhe cast types are recorded in this volume by each character, also recorded the total numbers of types which stored in the spven stock cases. ;it the end of the Sirzjeo,!g Jasz~, there are supplen~entarp informations about 1nzji;l types which described the historical fa,.!,, on the casting of 111zjlr: tj~be and listed the nanes of persons !: ho worked for the casting Il;rjin type. This figure was very impol-tanr materials which is to research into the casting of Imjin t y p , k~ut most scholars m-ho had n-ritten on the history of the KOI-ea:~ movahle type printing are neglected. The Sinjeong Jaslt was listed in the several bibliographies, but its contents were not used as a historical sources of the study on the Imjin type. As the followings the record of the Sirzjeong Jaszc, the casting