The study aims to determine the opinions of school principals on decentralization in education. Phenomenological research design was used in the study. The purposive sampling methods of convenience and criterion samplings were used together. The study group was composed of six volunteer principals. The data were collected through individual face-to-face interviews using a semi-structured form. Descriptive analysis and inductive content analysis were used. In conclusion, from a holistic perspective, most of the participants found the concept of decentralization to be close to full autonomy which is usually perceived as dangerous in terms of the unitary state structure. Therefore, they have more centralized attitudes towards educational processes other than financing and infrastructure support regarding decentralization in education. This is indeed an indication that concerns regarding decentralization in education are high. The participants think that decentralization will not harm our national identity and the national education structure is beneficial.