Students' attitudes towards Turkish course along with their reading attitudes constitute a significant variable that affects their entire life. This study aims to develop a model about secondary school students' attitudes towards Turkish course which is effective in their academic achievement. It is hypothesized in the study that the attitude towards Turkish course increases in students with positive reading attitudes with the mediation of their increased writing attitudes. The participants of the study consisted of 394 5th, 6th and 7th grade students (199 females and 195 males). The data was gathered through the Scale for attitude towards Turkish Course, Reading Attitude Scale, and Writing Attitude Scale. The findings revealed significant positive relationships between all the variables that were analyzed. The findings obtained from the mediation analysis have shown that writing attitude partially mediates the relationship between the attitude towards Turkish course and reading attitude. The findings of the research have been discussed in the context of the literature and recommendations for further studies have been made.