This study is investigation into the number of major subjects and computer-using subjects in department of interior architecture-related in 2008 & 2010 year. We arranged and analyzed collected data by searching homepages of subjects to survey and was able to reach conclusions as follows : Firstly, the number of department of interior architecture-related has decreased in colleges and universities at the same time in 2010 than 2008. Secondary, computer-using subjects tended to open lower grades than higher grades, so students used to control computer softwares easily. Thirdly, the purposes of computer-related subjects divide to four parts, 2dimensional-drafting, 2dimensional presentation, 3dimensional design, 3dimensional presentation(modeling and rendering included). Fourthly, from average 4.7 to 4.3 subjects have opened each the two year(2008, 2010) in college and from average 4.7 to 2.5 subjects in universities. and each 4(or5) subjects in college and 2(or 3) subjects in universities are opened mostly. Fifthly, Computer-related subjects tend to decrease the number of opening those subjects in universities, however it is necessary to be opened four computer-related subjects at least in order to design by using computer softwares.