Research in English and Education (READ), 2 (3),17-25 , August 2017 17 E-ISSN 2528-746X The Use of Weblog in Improving Students’ Writing Skill Muhammad Fahreza* 1 , Zulfadli A. Aziz 1 and Nurul Inayah 1 Syiah Kuala University, Banda Aceh *Corresponding author: mdfahreza17@gmail.com Abstract This research is aimed at finding out whether the use of weblog improves students’ writing skill at SMPN 9 Banda Aceh or not. The sample of this research was the second grade students in the class of VII-1. The researcher used pre-experimental research with one group pre-test post-test design in analyzing the significant improvement. The data were gained quantitatively by administering pre-test and post-test. In analyzing the data, the researcher used statistical formula mean score and t-test. The finding shows that the mean score in the post-test was higher than in pretest. It shows that the mean score of posttest is higher (75) than the pretest score (57), so the different scores of the tests is 18. Moreover, the analysis of t-test showed that tscore > ttable or 8.714 > 2.074 at the level of significance 0.05 with the degree of freedom (df) 22. The higher aspects were content and vocabulary (16 Point). Based on these results, it can be concluded that Ha is accepted and Ho is rejected. It suggests that the use of weblog can improve students’ writing skills in all aspects. Therefore, the Weblog is recommended as a good media in teaching writing. Key words: Weblog, Writing Skills, Organization, Content, Vocabulary, Grammar, Mechanics. 1. INTRODUCTION English is used as a media for communication and as the first international language to interact with others around the world. Millions of people use English in many aspects of social life, technology, and business. There are four aspects that need to be mastered by an English learner: speaking, writing, listening, and reading. Due to the advance of technology, writing is one of the important skills that must be mastered by the students in English language learning process. Richards (1990) as cited in Agustina (2014, p. 1) states that writing competence is very essential for academic success. In writing, students need well knowledge and hard thinking when they produce words, sentences and paragraphs with a good grammar. Junior high school students are expected to achieve 70 scores for the Competence of