One of the media used in teaching vocabulary is crossword puzzle. Crossword Puzzle is one of cooperative learning media. In crossword puzzle , students learn to fullfil the puzzle . In this media,crossword puzzle offers a challenge that will motivate the students to learn and practice their vocabulary. Besides the crossword puzzle is a kind of games that will makes the teaching-learning process more attractive than before. The students will feel fun, relaxed and enjoyable, and they will memorize the vocabulary in different way, that is by rewriting them.The study was aimed wether finding out crossword puzzle media is effective in improve the vocabulary score of the seventh grade students in MTs Miftahul Falaah Manisrenggo Kediri.