This study presents the opinion of the crusaders to Muslim leaders during the Crusades 491-690A.H./ 1095- 1290A.D. and before talking about the opinions of crusaders to Muslims and their leaders, Crusader historians focused on writing down the events that the region had experienced during that period, One of the first writings since the march of the armies is Fushi de Charteri. And these writings continued with other men born and raised there like William Sauri, These writings were a description of the bloody events and conflicts that ravaged the region and its inhabitants. But it conveyed to us the look and feelings of the crusaders towards Muslims, which are initially marked by ignorance, intolerance, contempt, transcendence and rejection of others and influenced by previous situations, But these opinions started to change a little bit as soon as they deal and contact with Muslims, and these writings still a prove about crusaders vision to Muslims, which forms part of the collective memory of both parties to our present time.