The founding of Philosophy and Religion Society of Thailand (PARST) can be traced back to the late 1970s when teachers of philosophy and religion in institutions of higher education joined together under the name of Philosophy and Religion Circle of Thailand. As their main activities, annual conferences were organized in different host institutions. The activities continued over a certain period of time before subsiding. In 1996, the activity was revived. And, from 1996-1998, annual conferences were held in October, and each was attended by approximately one hundred participants. The hosts were the following institutions.
1996: Department of Philosophy, Faculty of Arts, Chulalongkorn University
1997: Faculty of Philosophy and Religion, Assumption University
1998: Department of Philosophy and Religion, Faculty of Humanities, Srinakharinwirot University
In the annual conference of the year 1998 at Srinakharinwirot University, a resolution was reached that Philosophy and Religion Circle of Thailand be registered as Philosophy and Religion Society. In the annual conference of the following year hosted by the Department of Philosophy and Religion at Payap University in Chiang Mai, it was agreed that the Society's office be located there, and the registration be submitted to Chiang Mai. The process was completed on 25 October 2001. The Society is affiliated with the Office of the National Culture Commission and located in Kaew Nawarat Campus, Payap University. During the registration process, annual conferences were regularly held. The hosts were the Faculty of Arts, Rangsit University in 2000, and the Department of Humanities, Faculty of Social Sciences and Humanities, Mahidol University in 2001.
In the first annual general meeting at the Faculty of Humanities and Social Sciences at Burapha University, a resolution was reached that the phrase, "of Thailand," be added to the Society's name. On 15 October 2003, the new name was officially approved.
In 2009, the PARST's office was moved from Payap University to the Faculty of Phiilosophy and Religion, Assumption University.