This study aims to describe the ability of students in writing exposition texts before and after using the contextual learning model in class VIII of SMP Negeri 1 Hutabayuraja. The method used in this research is the experimental method, and the population in this study are all students of SMP Negeri 1 Hutabayuraja and the sample in this study is class VIII-1 students. In testing the hypothesis, the T test was used. The calculation results obtained tcount > ttable at the level of p < 0.05. Based on the data processing of the ability to write expository texts for the initial test (pre-test) and the final test (post-test), it was obtained that tcount = -11.417. At a significant level of 0.05 (95% confidence level) with a df of 30 obtained ttable = 2.042, significant at p <0.05. Thus, H0 is rejected and Ha is accepted. With the rejection of H0, there is a significant difference in the ability to write exposition texts for class VIII students of SMP Negeri 1 Hutabayuraja.