This article discusses the roots of religious pluralism of Sheikh Siti Jenar. As one of the prosecution of Islam in the land of Java, he had a thought of religious pluralism, which is the meeting point of religions on the esoteric landscape (the transcendent unity of religions), in terms of Islamic mysticism known as Wahdat al-Adyan. The author deliberately used pluralism to uncover the thoughts of Sheikh Siti Jenar based on his teachings. The theory of religious pluralism classification, which includes secular humanism, global theology, syncretism, and lasting wisdom, is used to determine the pattern of religious pluralism found in the thought of Sheikh Siti Jenar. The problems discussed in this paper are the thoughts and patterns of religious pluralism Sheikh Siti Jenar. For that purpose, the relevant data, obtained through the literature study, is analyzed using a method of content analysis and descriptive-analytic. Based on the study conducted, it can be suggested that the concept of religious pluralism Sheikh Siti Jenar is the implications of the plurality of scientific networks that accumulate in the developed teachings, Manunggaling Kawulo Gusti. The pluralism in the thought of Sheikh Siti Jenar covered the meeting point of various religions at the esoteric level, because the difference for him only occurred at the level of exoscorers alone. This view when associated with religious pluralism classification belongs to the category of eternal wisdom. The thought of Sheik Siti Jenar about the mystical maqamat in the process of discovering identity, the three elements that build human beings, heaven and hell, and his views on nature, all of which are intertwined with the teachings of Islamic mysticism, Hinduism, Buddhism and Javanese philosophy. The thought of Sheikh Siti Jenar took the pattern of religious pluralism, syncretism.