Mustadrak al-Wasa'il is a valuable collection of hadiths of the imams which is about the rules and issues of Fiqh, written by Mirza Hossein Nouri, known as Mohaddes Nouri, in order to complete the book Wasa'il al-Shi'ah by Sheikh Hur Ameli. The special viewpoint of Mohaddes Nouri to the jurisprudence of hadith led him to use a collection of methods and principles while refining the narrative texts and thereby causing to refine and purify the narrations or understand the Hadiths. Since one of the most importana topics in hadith jurisprudence is the discussion of conflicting hadiths, This dissertation critiquesand reviewsone of the most important sub-branches of hadith jurisprudencecalled conflicting hadiths and analyzes the solutions considered by Mohaddes Nouri to resolve the contradictory hadiths. The results of this article show that the most important methods of resolving the conflict of hadiths are: Carry on taqiya, Imami Consensus, Narrative reputation and practical reputation, Carrying on istihab, Shipping on special, Carried on a bound, Carry on emergency, Comply with the principle, Compatible with multiple and valid versions, Consensus, Distortion and Tasihif and ....