ABSTRACT : Every concideration of Islamic law has basic source as in al-Qur'an, Hadith, qiyas, ijma', maslahah mursalah, ect. It has also motive of law ('illatul hukmi) and its effect, although there are many complicated problems dealing with Islamic law. Example, the marrital problem between moslem and non-moslem, it is prohibited. In addition, there are many complicated problems that meaningl…