This research aims to highlight the importance of investing an orphan’s wealth legally and in view of Shari’ah through a comparative study between Islamic rulings and Yemeni law; it investigates, in addition, the reality of an orphan’s wealth investment in the Yemeni society based on sound and objective criteria in the coverage of the urgent needs of an orphan in real life; the topic (Investment of the wealth of orphan in Islamic and Yemeni law: A Comparative analytical study) was addressed using an inductive: descriptive, Comparative and analytical approach , in accordance with a legal mechanism based on authentic texts of Islamic law and the laws in force in the Republic of Yemen. The study highlighted the greatness of Islamic law in taking into account the needs of an orphan financially, an element the Yemeni law approves of.