ABSTRAK Penelitian ini bertujuan untuk (i) mengembangkan media mind mapping, (ii) mendeskripsikan pengetahuan siswa tentang banjir, (iii) mendeskripsikan sikap kesiapsiagaan siswa terhadap banjir, (iv) mengetahui pengaruh media mind mapping terhadap pengetahuan dan sikap kesiapsiagaan siswa tentang banjir dan (v) mendeskripsikan efektivitas penerapan media mind mapping pada siswa. Jenis penelitian ini adalah R&D dengan menggunakan model ADDIE. Subjek penelitian adalah siswa kelas X-3 MA Darul Ulum yang berjumlah 30 siswa. Pengumpulan data dilakukan dengan lembar pretest dan posttest serta lembar mind mapping hasil karya siswa. Selanjutnya data dianalisis secara statistik deskriptif. Hasil penelitian menunjukkan bahwa (i) pengembangan media mind mapping dilakukan dalam lima tahapan yaitu analysis, design, development, implementation dan evaluation, (ii) persentase pengetahuan siswa tentang banjir sebelum penerapan media mind mapping sebesar 40,03 persen dan meningkat menjadi 80,6 persen setelah penerapan media mind mapping, (iii) persentase sikap kesiapsiagaan siswa sebelum dan sesudah penerapan media berturut-turut 28,2 dan 74,35 persen, (iv) media mind mapping mempengaruhi pengetahuan siswa tentang banjir sebesar 20 persen dan mempengaruhi sikap kesiapsiagaan siswa sebesar 4 persen, (v) media mind mapping efektif untuk diterapkan karena mampu meningkatkan pengetahuan dan sikap kesiapsiagaan siswa. Penelitian ini menyimpulkan bahwa media mind mapping dapat meningkatkan pengetahuan dan sikap kesiapsiagaan siswa MA Darul Ulum terhadap bencana banjir. Kata kunci: mind mapping, pengetahuan, sikap kesiapsiagaan, banjir. ABSTRACT This research aimed to (i) develop a media mind mapping, (ii) describe the students' knowledge of the flood, (iii) describe the attitude of preparedness of students to flooding, (iv) the effect of media mind mapping to the knowledge and attitude of preparedness of students on floods and (v ) describe the effectiveness of media mind mapping on the students. This type of research was the R & D using ADDIE models. The subjects were students of class X-3 MA Darul Ulum totaling 30 students. Data collected by pretest and posttest sheets and sheets of mind mapping of students' work. Furthermore, the data was analyzed by descriptive statistics. The results showed that (i) the development of media mind mapping carried out in five stages, namely analysis, design, development, implementation and evaluation, (ii) the percentage of students' knowledge of the flood before the application of media mind mapping by 40.03 percent and increased to 80.6 percent after media mind mapping application, (iii) the percentage of the attitude of preparedness of students before and after implementation of media respectively 28.2 and 74.35 percent, (iv) media mind mapping affect students' knowledge of flooding by 20 percent and affected the attitude of preparedness of students by 4 percent, (v) the effective media mind mapping to apply. The study concluded that the media mind mapping could enhance students' knowledge and attitudes MA Darul Ulum preparedness against floods. Keywords: mind mapping, knowledge, attitude, preparedness, flood.