The purpose of this study is to find out the types of speech errors and the influencing factors of speech errors towards the character that had Asperger’s Syndrome. The data of the research itself were the words, phrases and sentences uttered by an Asperger’s Syndrome and contained speech errors in the English language. The data analysis was done by using Miles and Huberman analysis stages which is data reduction, data display and conclusion drawing or verification. The results of the research showed the types of speech errors uttered by an Asperger’s Syndrome based on Clark & Clark’s theory found are silent pause, filled pause, repeats, false start (retraced), stutter and interjections. There are no types of speech errors; false start (unretraced), corrections and slip of tongue. It is because people with Asperger syndrome had a lack of cohesion to conversation and repetitive patterns of speech as their speech characteristic. Meanwhile false start (unretraced) and corrections contain an explicit “I mean”, “or rather”, “that is” and without repeating the word in their utterances. The influencing factors of speech errors towards Asperger’s Syndrome are cognitive difficulty and social factors (situational anxiety and social circumstances).