This study aims to examine key words and structural features of elementary school announcements through the text network analysis of announcements of elementary school news letters for Science Month and further analyze kinds of Science Month events, targets and participation types. As research subjects, this study selected 87 letters basically qualified as school news letters. The results of this study can be summarized as follows; Firstly, when analyzing key words commonly seen in announcements of school news letters for Science Month, this study discovered that the word, ‘Science’, was used most, followed by ‘Student’, ‘Interest’ and ‘Participation’ regarding science events. Besides, the word, ‘Experience’, seemed to be of great importance, but it did not belong to the top list of key words. Therefore, it seemed necessary to be emphasized in announcements of school news letters. Secondly, when analyzing Science Month events introduced by school news letters, this study discovered that ‘Aeronautical Science Inquiry Competition’ was most held by elementary schools, followed by ‘Mechanical Science Inquiry Competition’, ‘Science Picture Inquiry Competition’, ‘Natural Observation Inquiry Competition’ and ‘Scientific Observation Experiment Competition’. Interestingly, most of the science events were mainly held for upper graders, and in the participation type, students participated in such events as individuals rather than as teams. Moreover, most of the participants were qualified for main competitions through Education Office preliminaries and evaluated through written or descriptive tests.