This report intended to approach the substance of expression and comprehension territory to Net lingo(I think Net lingo education is similar to Internet language, so my report contains internet language education in some cases). in Korean language education of 7th educational curriculum. Traditionaly, the expression territory composed speaking and writing, and the comprehension territory oragnized reading and hearing. But the Net lingo education composed of two side. The one is the internal factor emerge from the space of computer communication, the other is the actual application. So I review the substance of Net lingo education in 7th Educational Curriculum. The results are as follows : (1) Elementary school(1~6 degree) : Net lingo deals with discretion curriculum('Computer and life(컴퓨터와 생활)'), but the course of study to Korean not appear this subject. (2) Middle school(7~9 degree) : this theme deals of weight comparatively on 'Actual Korean[생활국어]', but the substance of expression and comprehension are composed of skillful matters. (3) High School(10 degree) : this theme are not differ from middle school(an elective course Korean-Actuality(국어생활), Reading(독서), Writing(작문) deals with skillfull dimension). I think Net lingo attaches importance to educational curriculum because the computer communication have a great specific gravity in modern society. The substance of expression and comprehension must be lay each degree. This substance considered expression and comprehension education in 7th curriculum. The contents show (17),(18), (21), (22). But we must overcome skillful dimension, and head for in social, cultural context.