This research aimed to explain the policy of school principals in strengthening Rahmatan lil 'Alamin Student Profiles through Diniyah education at SD Nahdlatul Ulama Sleman Yogyakarta, knowing the values of strengthening Rahmatan lil 'Alamin Student Profiles through diniyah education at SD NU Sleman Yogyakarta and knowing the supporting factors and obstacle to the school principal's policy in strengthening Rahmatan lil 'Alamin's Student Profile through early education at the elementary school. The research type used was field research using descriptive qualitative methods. Sources of research data were obtained from observations, interviews, and documentation. The data analysis method used the Miles and Huberman Interactive Analysis model. Triangulation and member checking were done to test the validity of the data used. The research results indicated that 1) school principals had developed policies in strengthening Rahmatan lil 'Alamin Student Profiles through diniyah education with the stages of planning, determining, implementing, and evaluating. 2) The values of strengthening the Rahmatan lil 'Alamin Student Profile which were reflected were: the value of tolerance (tasamuh), the value of justice (i'tidal), the value of balance (tawazun), and the value of equality. 3) Supporting factors come from school principals, diniyah teachers, structured syllabi and scheduled hours, and positive responses from students. In contrast, inhibiting factors come from the preparation of the diniyah curriculum, the process of making the diniyah modules, and the need for coordination among the diniyah teachers.