The aim of this study is to examine and analyse the postgraduate thesis studies published in the national and international fields for writing for learning purposes in science education in the context of the determined criteria. For this purpose, national and international postgraduate theses prepared for writing in science education between 2010-2020 were reached and 37 national and 36 international thesis studies included in the study were examined. This study, which examines the theses prepared for writing in the field of science education, was carried out as a synthesis study and in this direction, 73 postgraduate theses were examined with a comprehensive and critical approach. As a result of the examination; In most of the national and international postgraduate theses, writing themes related to science achievement, science attitude, conceptual learning and scientific skills are preferred, theses are mostly carried out with experimental methods from quantitative research methods, mostly secondary school samples are studied, and academic achievement test is generally used as a data collection tool and t-test analyses were used in the analysis process. In addition, within the framework of the thesis studies analysed, it was revealed that writing activities had a positive effect on academic achievement, attitude, writing skills, writing proficiency, and creative writing levels. International theses; It has been determined that it differs from national theses with the themes of science news, professional development, technology-integrated writing, and information transformation. Based on the results of the study, it is suggested that the postgraduate theses, especially in the national field, conducted for writing for learning purposes in science education, are enriched from different aspects (scientific method, approach, subject, etc.) to fill the gap in this subject with studies.