The research subject is derived from the fact that since Tanzania gained its independence and liberated from the grip of British colonialization in 1961 AD, the Tanzanian government proceeded to regulate various elements in its life affairs. In this regard, the Tanzanian Law for Marriage and Divorce was formulated in 1971 neglecting sharia implications on most of the important subjects, hence the need to understand the compatibility of this law with Islamic Jurisprudence. The research aims to demonstrate the merits of the Sharia, its advantages and accurateness in handling social matters within the provisions of marriage and divorce. Additionally, to reveal the extent of conformity or defilement of the Tanzanian Marriage Law to Islamic Jurisprudence, and to establish the effect of the discrepancy between the Sharia and the Law on Tanzanian Muslims. The research comprises of a preamble and two chapters. The Preamble defines Tanzania as a country, the introduction of Islam into the country and the Marriage Law 1971. Chapter one covers the provisions of marriage and its implications on both jurisprudence and law, while chapter two covers the provisions of divorce and its implications on both jurisprudence and the law. I concluded the research with a summarization of the findings drawn from this research in addition to the most important recommendations. The most significant findings: First: Identifying contradictions in the articles stipulated in the Tanzanian Law with the Islamic Jurisprudence. Second: Identifying the consequences of ruling the articles of the law on the Muslims of Tanzania. Third: Demonstrating the merits of Islamic Law (Sharia) and its validity in all times and all places.