Siraj AlDeen Ibn AlMulaqqin (723-804 A.H./1323-1401 A.D.) lived for about eighty years and spent most of his life in Egypt during the Mamluk state era in which Egypt witnessed a prosperity in the scientific aspect and encouragement of scholars and scientists and so Egypt became a center for the scientific activity. Throughout this era, there were many well-known scientists and scholars like Siraj AlDeen Ibn AlMulaqqin, abdulraheem AlIraqi, AlSabki and others. The current research highlights the Siraj AlDeen Ibn AlMulaqqin, who is regarded as one of the encyclopedic prominent scholars in the eighth century. He mastered several types of knowledge like Hadiths, Fiqh, linguistics and history and wrote many books in these fields to the extent that he was considered as the a scholar who wrote the biggest number of books compared to his peers. The research also endeavors to identify the most important aspects of this author's life, biography, scientific path and his status amongst the scholars at his time. The research was divided into several axes, they involved: his name, his lineage, his birth, his early life, his scientific biography that included his teachers, his students, his scientific participations, the most important positions he occupied, the opinions of scholars about him and then the research was concluded with his death.