ABSTRAK Nurul Aida Fitri. 2018. Korelasi antara Kemampuan Membaca dan Penguasaan Struktur Kalimat dengan Kemampuan Menulis Teks Negosiasi Siswa Kelas X SMA Negeri 1 Mutiara. Tesis. Program Studi Magister Pendidikan Bahasa Indonesia, Fakultas Keguruan dan Ilmu Pendidikan Universitas Syiah Kuala. Pembimbing (1) Dr. Rajab Bahry, M.Pd., Pembimbing (2) Dr. Razali, M.Pd. Kata Kunci: Korelasi, Kemampuan Membaca, Penguasaan Struktur Kalimat, Kemampuan Menulis Teks Negosiasi. Bertujuan mendeskripsikan korelasi antara kemampuan membaca dan kemampuan menulis teks negosiasi siswa kelas x SMA Negeri 1 Mutiara, korelasi antara penguasaan struktur kalimat dan kemampuan menulis teks negosiasi siswa kelas x SMA Negeri 1 Mutiara, dan korelasi antara kemampuan membaca, penguasaan struktur kalimat dan kemampuan menulis teks negosiasi siswa kelas x SMA Negeri 1 Mutiara. Pendekatan penelitian ini adalah kuantitatif dengan metode korelatif. Jenis adalah penelitian korelatif. Teknik pengumpulan adalah teknik tes untuk ketiga variabel, yaitu tes kemampuan membaca, tes penguasaan struktur kalimat, dan tes kemampuan menulis teks negosiasi. Data penelitian diolah secara korelatif. Hasil penelitian menunjukkan bahwa (1) nilai korelasi (r) antara kemampuan membaca dan kemampuan menulis teks negosiasi sebesar -0,225 menunjukkan hubungan rendah. Terdapat hubungan yang signifikan antara variabel kemampuan membaca dan variabel kemampuan menulis teks negosiasi. Dengan demikian, Ha diterima dan H0 ditolak (2) nilai korelasi (r) antara penguasan struktur kalimat dan kemampuan menulis teks negosiasi sebesar 0,212 menunjukkan hubungan rendah. Terdapat hubungan yang signifikan antara variabel penguasaan struktur kalimat dan variabel kemampuan menulis teks negosiasi. Dengan demikian, Ha dinyatakan diterima dan H0 ditolak (3) nilai korelasi (r) antarvariabel kemampuan membaca, penguasaan struktur kalimat dan kemampuan menulis teks negosiasi sebesar 0,267 menunjukkan hubungan yang rendah. Terdapat hubungan yang signifikan antara kemampuan membaca, penguasaan struktur kalimat dan kemampuan menulis teks negosiasi. Dengan demikian, Ha diterima dan H0 ditolak. ABSTRACT Nurul Aida Fitri. 2018. Correlation between Reading Ability and Sentence Structure Mastery with Ability of Writing the Negotiation Text of Grade X students in State High School 1 Mutiara. Thesis. Study Program of Master of Indonesian Language Education, Master’s Program of Syiah Kuala University. Supervisor (1) Dr. Rajab Bahry, M.Pd., Supervisor (2) Dr. Razali, M.Pd. Keywords: Correlation, Reading Ability, Sentence Structure Mastery, Ability of Writing NegotiationText. This study aims to describe the correlation between reading ability and ability of writing negotiation text of grade X students at State Senior High School 1 Mutiara, correlation between the mastery of sentence structure and the ability of writing negotiation text of Grade X students in State Senior High School 1 Mutiara. Moreover, the research is an attempt to define the correlation between reading ability, sentence structure mastery and the ability of writing negotiation text of Grade X in Senior High School 1 Mutiara. The research approach used in this study was quantitative with correlative method. The type of this research is correlative research. The data collection technique used for the three variables is reading comprehension test, sentence structure mastery test, writing test of negotiation text. The data was analyzed correlatively. The result of the analysis shows that (1) the correlation (r) value between reading ability and ability of writing the negotiation text is at -0.225 which is low. Thus, there is significant correlation between the reading ability variable and ability of writing the negotiation text variable. Therefore, Ha is accepted and H0 is rejected. (2) the correlation (r) value between sentence structure mastery and ability of writing the negotiation text is at 0.212 which is low. Therefore, there is significant correlation between sentence structure mastery and ability of writing the negotiation text. Ha is accepted and H0 is rejected. (3) the correlation (r) value between variable of reading ability, sentence structure mastery, and ability of writing the negotiation text is at 0.267 which is low. Therefore, there is significant correlation between reading ability, sentence structure mastery, and the ability of writing negotiation text. Thus, Ha is accepted and H0 is rejected.