Globalization of law is an incontestable reality. It is a major concern, which can be justified not only from structural, conceptual and legal values perspectives, but also in terms of the legislative patterning realm. Laws of Islamic Nations cannot remain unaffected from this reality. The basis of viable regulation and legal conceptions in European systems, and generally in the West, has a humane rationality nature. Thus, from substantive perspective, globalization can be considered to be a kind of threat to laws of Islamic Nations, since in Islamic law, humane rationality is not the sole basis for the credibility of legal values, conceptions and structures. Here, it is assumed that globalization can be viewed as an opportunity, and the adoption of Unified Islamic Civil Code by following European Civil Code pattern may be regarded as an example of this opportunity. Nevertheless, the establishment of European Civil Code and an Islamic Civil Code encounters many challenges. By analysing these challenges, this article aims to present some solutions.