There are three objectives of this research namely to identity how high the students’ morphological awareness at Fourth Semester Students of English Language Education Department of Walisongo State Islamic University (UIN) of Semarang in the Academic Year of 2016/2017, to identity how high the students’ writing ability at Fourth Semester Students of English Language Education Department of Walisongo State Islamic University (UIN) of Semarang in the Academic Year of 2016/2017, to find out whether any significant influence of student’s morphological awareness toward students’ writing ability at Fourth Semester Students of English Language Education Department of Walisongo State Islamic University (UIN) of Semarang in the Academic Year of 2016/2017. The quantitative approach with the use of correlation product moment and simple linier regression was used to calculate two variables. The two measurements of morphological awareness (morphological structure test and morpheme identification test), and the use of writing narrative text to measure writing ability were administered to 92 college students at Fourth Semester Students of English Language Education Department of Walisongo State Islamic University (UIN) of Semarang in the Academic Year of 2016/2017. The result is that the quality of morphological awareness is average, the quality of students’ writing ability is mediocre and the students’ morphological awareness gives the influence 28.8% toward students’ writing ability and 71.2% comes from other aspects. The researcher has known that morphological awareness has important role in writing ability. Therefore, the researcher suggests for students to aware with morphology.