Ghurar al-Siyar as a general history has been written in the early fifth century, and since its compilation, an argument formed about the author name and identity. The source of the different ideas was in the different spelling and diacritics of the title of the book as well as the name of author in its remaining manuscripts and also in the works of the biographers. Ghurar al-Siyar has been named as Ghurar Akhbar Muluk wa- Siyarihim, al- Ghurar Fi Siyar Muluk wa- Akhbarihim, Ghurar Akhbar Mulūk al- Furs wa Siyarihim, Tarikh Ghurar al-Siyar, Ghurar wa Siyar al Muluk, Ghurar wa Siyar. Among these names, two names Tarikh Ghurar al Siyar and Ghurar Akhbar Muluk al- Furs wa Siyarihim are more popular as the original names of the book. In addition to ambiguity in the name of the book, there are doubts about the book’s author, as his name has been recorded as AbuMansur al Husiyn ibn Muhammad al-Mar'ashi(al-Tha'alibi), AbuMansur Husiyn ibn Muhammad al- Marghani al-Tha'alibi, Husiyn ibn Muhammad al-Marghani and AbuMansur 'Abd al-Malik ibn Muhammad al-Tha'alibi al- Niyshabouri Among those names, most researchers agreed with Husiyn ibn Muhammad al-Marghani and AbuMansur 'Abd al-Malik ibn Muhammad al-Tha'alibi al- Niyshabouri This article aims to analyze the names that mentioned for Ghurar al-Siyar, and determined the real name of the book. Then, identity of the real author of the book has been specified by the study on the disputes on the identity of the author of Ghurar al-Siyar.