This study aims to describe the improvement of students' skills in writing short story texts. This quasi-experimental study used pretest-posttest in the control and experimental groups. The population in this study were students of class VII SMK with a purposive sample of 46 people. The research was conducted in the period from January 20 to February 5, 2020. The instruments used were in the form of tests and non-tests, validated by two experts. Based on the results and discussion, it is concluded that the discovery learning method assisted by Adobe Flash can improve the ability to write short stories and can increase learning motivation. Students become challenged in solving the problems given by the teacher.