This research aims to find out the membership status of non-Muslims in Islamic Parties from the perspective of Islamic law. As a Party that has made Islam a Party principle, the Islamic Party should consistently use Islam (Islamic sharia) as a guideline in regulating Party activities, including in terms of recruiting Party members. Based on normative research methods on the texts of the Al-Qur'an, through a statutory and conceptual approach, it is known that Islamic Parties must take their membership from among the Muslims themselves. In the Al-Qur'an there is an order for Muslims to form a congregation or party that call to al khair, and do amar makruf nahi munkar, and this order only applies to Muslims. Muslims are prohibited from making non-Muslims close friends or making non-Muslims leaders, whether party leaders or community leaders. Therefore, Islamic Parties must not take, accept and make non-Muslims as party members, or make them leaders, either as party leaders or leaders of the Ummah.