This final project discussed The Effectiveness of Using Graphic Organizers to Teach Writing of Descriptive Text (An Experimental Research at the Tenth Grade of MAN 02 Semarang in the Academic Year of 2016/2017). The statement of the problems in this study was How is the Effectiveness of Using Graphic Organizers to Teach Writing of Descriptive Text?The population of the research was the students of tenth grade of MAN 02 Semarang. The research method was Experimental research, which was conducted in two classes: Experiment Group X IPA2 and Control Group X IPA5. The X IPA2 was taught by using Graphic Organizer meanwhile the X IPA5 was taught using direct method. To analyze the data the researcher used t-test. It was used to determine whether there was significant difference between students’ score in experimental and control classes. Based on the result, the researcher concludes that Graphic Organizer is effective in teaching writing descriptive text at MAN 02 Semarang in the Academic Years of 2016/2017. Finally the researcher recommended the use of Graphic Organizers as an alternative medium in teaching writing descriptive text.