The study of Muslim scholars in the resistance to the Crusade invasion in Andalusia is one of the important studies, which had an important role not only in preaching and guidance and sharpening the motivation and strengthening the souls, but to take up arms and fight in battles until they have the honor of martyrdom for God. These scholars, including jurists, writers and poets, stood beside leaders, governors and caliphs in battle, remembering them, teaching them and understanding them religiously and morally, as well as the rules of fighting, so their role was very important in spreading the Islamic religion and upholding the word of God.