Abstract
The purpose of this research is to look for the lesson improvement method by learner's feeling evaluation and learning attitude analysis using the comment mail on a lesson wrote by the university student in a mobile phone. The sentences of these comment mails were classified into four categories, interest, motivation, knowledge and consideration as the standard of the feeling evaluation. Significant differences were not found in the morpheme level. However as a result of classification of the meanings of the contents, there are many motivation and consideration in high score students, and many interest and knowledge in low score students. Each one student was selected from high and low score students, and their sentences were compared, and it was shown that high score students remake the contents of the lesson by their own terms, but low score student makes a copy of content the teacher taught. In conclusion, for the lesson improvement, lesson should be remade to learner's motivation and consideration increase and learner's remaking the contents of the lesson increase.