ABSTRAK Penelitian ini bertujuan untuk mengidentifikasi kemampuan social adjustment siswa di lingkungan sekolah berdasarkan teori yang dikembangkan oleh Hurlock. Metode yang digunakan adalah deskriptif kuantitatif dengan populasi penelitian seluruh siswa kelas V di Gugus Khayangan Permai, Labuhan Lombok. Data dianalisis menggunakan teknik persentase. Hasil penelitian menunjukkan bahwa rata-rata kemampuan social adjustment siswa kelas V di Gugus Khayangan Permai termasuk dalam kriteria “tinggi” dengan persentase sebesar 70%. Indikator penampilan nyata menunjukkan persentase 70%, penyesuaian diri terhadap kelompok 68%, sikap sosial 73%, dan kepuasan pribadi 73%, semuanya termasuk dalam kriteria “tinggi”. Secara keseluruhan, kemampuan social adjustment siswa kelas V di Gugus Khayangan Permai berada dalam kategori tinggi. Kata Kunci: Social Adjustment, Kemampuan Social Adjustment. ABSTRACT This research aims to identify the social adjustment ability of students in the school environment based on the social adjustment theory developed by Hurlock. The research methode used is descriptive quantitative. The population of this research includes all fifth-grade students at Gugus Khayangan Permai, Labuhan Lombok. The analysis technique employed is percentage analysis. The results show that the average social adjustment ability of fifth-grade students at Gugus Khayangan Permai is categorized as "high”, with an overall percentage of 70%. The indicators of actual performance show a percentage of 70%, adjustment to groups at 68%, social attitude at 73%, and personal satisfaction at 73%, all of which fall under the “high” category. Thus, the overall social adjustment ability of fifth-grade students at Gugus Khayangan Permai is categorized as high. Keywords: Social Adjustment, Social Adjustment Ability.