Writing is an important skill in English that must be mastered by all students. Eighth grade students at MTs Darul Ulum have difficulty in writing, especially writing descriptive text. In this research, researchers used flashcard with clue words as a learning medium to improve students' descriptive text writing achievement. This research uses experimental research as a type of quantitative research to examine the improvement of students' writing skills in descriptive texts using flashcards with clue words in junior high schools. Experimental research describes what happens to certain variables when certain treatments are given to students. Data collection was carried out using pre-test and post-test. The research participants were 27 students. Data analysis in this research includes statistical data from Spss. The data shows that the pre-test score of the experimental class was 67.1 and the control class was 67.2. The experimental class was given treatment using flashcard. Meanwhile, the control class was taught without using media. The average post-test score of the experimental class was 85.4 and the control class was 78.2. Statistical analysis shows that the scores obtained by the two classes, namely the experimental class, are higher than the control class. Data from spss shows that Asymp. signature. (2-tailed) of 0.000 is smaller than 0.05 and the hypothesis is accepted. In this way, the use of flashcard in descriptive texts is proven to be a useful learning medium, facilitating material stimulation and better structured teaching, thereby improving the learning process.