This research aims to investigated error pronunciation vowel in reading text descriptive MI Rare Muchtary students. The purpose of this study aims to identify kind of error in students pronunciation when they read description text, analyzed the factor of error in pronunciation, and analyzed learning strategy to improve their pronunciation. This research conducted mixed method, there are qualitative and quantitative approach. The qualitative approach used descriptive analysis method, and for qualitative approach used data analysis statistic. The data drawn through sound recording students at the time read descriptive text, then the data transcribed phonetic students to know in error. The purpose of this study is students error pronunciation in vokoid and diphthongs is 404. Error included the omission 11, addition 62 as substitution 335. Factors causing students derived from a pronunciation is interlingual, intralingual dandevelopmental error. Researchers used reading aloud strategy to increase the students pronunciation. The result of this study can be seen from the pre test mean 75.70 and post test 78.39. Therefore, reading aloud is can increase students pronunciation significantly.