Abstrak Penelitian ini bertujuan untuk mendeskripsikan bentuk solidaritas sosial pada upacara merti bumi dalam membudidayakan warisan leluhur. Metode yang digunakan dalam penelitian ini yaitu metode deksriptif kualitatif. Data dikumpulkan melalui proses wawancara, dokumentasi, dan observasi lokasi di Dusun Tunggul Arum, Desa Wonokerto Kecamatan Turi Kabupaten Sleman Yogyakarta. Hasil penelitrian menunjukkan bahwa solidaritas sosial dalam upacara merti bumi dilakukan dengan gotong royong melalui serangkaian kegiatan pelaksanaan prosesi upacara mulai dari pengambilan air suci 4 empat penjuru, parade seni budaya yang di arak sampai ke lokasi upacara, pengajian, kirab, tari persembahan, gunungan salak pelepasan burung, sampai pada penyajian makanan yang diberikan kepada penonton semua dilakukan secara bersama-sama oleh masyarakat dusun Tunggul Arum. Solidaritas terbentuk atas rasa kebersamaan menjaga budaya leluhur yang diberikan secara turun-temurun. Kata Kunci: Solidaritas Sosial, Upacara Merti Bumi, Warisan Leluhur Abstract This study aims to describe the form of social solidarity in the Merti Bumi ceremony in cultivating ancestral heritage. The method used in this research is descriptive qualitative method. Data was collected through interviews, documentation, and location observations in the Tunggul Arum Hamlet, Wonokerto Village, Turi District, Sleman Regency, Yogyakarta. The results of the research show that social solidarity in the Merti Bumi ceremony is carried out through mutual cooperation through a series of activities for carrying out the ceremonial procession starting from taking holy water from the 4 directions, the cultural art parade which is paraded to the ceremony location, recitation, carnival, offering dance, mountains of salak releasing birds. , right down to the presentation of the food given to the audience, everything was carried out jointly by the people of the Tunggul Arum hamlet. Solidarity is formed from a sense of togetherness in protecting the ancestral culture that has been handed down from generation to generation. The characteristics of the community are included in mechanical solidarity, which is a strong awareness of the group to help each other and work together to prepare various needs in traditional ceremonial processions. Keywords: Social Solidarity, Merti Bumi Ceremony, Ancestral Heritage