The aim of this research was to improve students‟ writing skill in junior high school especially of the eight graders. This research used Classroom Action Research (CAR). There were 2 cycles and each cycle the researcher did 2 actions. This research was conducted in the eighth grade of the junior high school in SMP N 3 Kalibagor in academic year 2014 / 2015. The participants of this research were the eighth graders of junior high school in Kalibagor. There were 30 students. The object of this research was the Clue Words Game for every action. The data were collected through observation, test and questionnaire. This research applied recount text in cycle 1 and narrative text in cycle 2. In analyzing of data validity the researcher used the result of test, observation and questionnaire. The result of the research showed that the use of clue words game could improve the students‟ writing skill in the eighth graders in junior high school of SMP N 3 Kalibagor. It could be seen from the result of students‟ writing competence, there was improvement from cycle 1 3.27% and cycle 2 13.18%. It was also supported by observation, test, and questionnaire. Most of the students could involve in the teaching learning process. This research was success because this research reached the action success criteria was 83.33% from the minimum score was 80% from all the participants.