Shahid Thani is a great Shia jurist. In addition to jurisprudence, he Is a major figure in theology. He cared extensively to the matter of methodology of theology and it is his distinguished characteristics in this era. he used combined method of rationality, revealed knowlege and inborn reasoning in his theological discussion. Inborn knowledge has a particular status in Shahid Thani view. He believed in independence of reason in fundamental theological beliefs, though the role of revealed knowledge in this methodology is significant. He disagreed with authority of unique tradition in theological affairs, interpreting revealed scriptures when contradict with rational reasoning.