Due to the period of political and constitutional reforms in Thailand, this publication published by the Office of the Constitutional Court of Thailand consists of the summaries of the Constitutional Court Rulings No. 1-3/2560 of the year 2017 with a total of three cases and the Constitutional Court Ruling No. 1-8/2561 of the year 2018 with a total of seven cases in both English and Thai languages. The summaries compiled here provide a comprehensive overview for Thai and foreign readers, researchers, and parties concerned on the development of the Constitutional Court’s jurisprudence and constitutional case adjudication.