The education process can run smoothly if it has a competent teacher quality. Schools must ensure the quality of teachers in order to produce quality teachers. This study aims to determine the understanding of educators in the Education Unit Accreditation Instrument (IASP) 2020 in order to improve the quality of education at SD/MI Serangpanjang, Subang, Indonesia by using the mechanism of the accreditation component. The method used is descriptive qualitative with data from interviews, distributing research questionnaires, and document studies. The results showed that the IASP 2020 could be understood well by teachers at SD/MI, Serangpanjang District, Subang Regency. Teachers at SD/MI, Serangpanjang Sub-district, Subang Regency can understand the statements in the 2020 Education Unit Accreditation Instrument. The conclusion is that the understanding of Islamic Religious Education and Teachers of Non-Islamic Religious Education regarding the quality components of elementary school teachers is well understood. The research is completed with the hope that it can be taken into consideration in improving the quality of teachers.