The pro-social behavior is one of the contributing factors to students’ success in developing society’s healthy social interaction. This study aims to investigate the correlation between students’ collective well-being and gratitude with their pro-social behavior during the COVID-19 pandemic. This study involved eighth grader students of junior high school students. This study used a quantitative approach with a correlational research design. The samples were selected using the total sampling of 201 students, while the data were garnered through the students’ well-being, gratitude, and pro-social behavior scales. The scales were constructed using the Likert scale, distributed online through Google Forms. The data analysis was carried out using product correlation moment through Microsoft Excel and SPSS version 26. Our results showed a positive and significant correlation between students’ well-being with their pro-social behavior, positive and significant correlation between gratitude and pro-social behavior, as well a positive and significant collective relation between students’ well-being and gratitude with their pro-social behavior during the COVID-19 pandemic.Abstrak: Perilaku prososial merupakan salah satu faktor yang berkontribusi terhadap keberhasilan siswa dalam mengembangkan interaksi sosial yang sehat di masyarakat. Penelitian ini bertujuan untuk mengetahui hubungan antara student well-being dan gratitude secara bersama-sama dengan perilaku prososial di masa pandemi Covid-19 pada siswa kelas delapan sekolah menengah pertama. Metode yang digunakan dalam penelitian ini adalah pendekatan kuantitatif dengan desain penelitian korelasional. Teknik penarikan sampel menggunakan total sampling dengan mengambil seluruh siswa kelas delapan sejumlah 201 orang siswa. Pengumpulan data menggunakan skala student well-being, gratitude dan perilaku prososial. Skala dikembangkan menggunakan skala Likert, yang dibagikan secara online melalui Google Forms. Analisis data menggunakan korelasi product moment dengan bantuan Ms. Excel dan SPSS versi 26. Hasil penelitian menunjukkan bahwa ada hubungan positif dan signifikan antara student well-being dengan perilaku prososial; hubungan positif dan signifikan antara gratitude dengan perilaku prososial; serta ada hubungan positif signifikan antara student well-being dan gratitude terhadap perilaku prososial subjek di masa pandemi Covid-19.