The research aims to find out the application of Comprehensive Intelligence and its significance in achieving the educational objectives of Padangsidimpuan Bunayya SDIT, from the psychology of child development. Aspects studied: the steps of implementing Multiple Intelligence include learning design, implementation and evaluation of learning, excellence, weaknesses and significance of the application of Comprehensive Intelligence in developing child development psychology to achieve the educational objectives of SDIT Bunayya Padangsidimpuan. Data sources are teachers, students, principals, foundations and parents of students of SDIT Bunayya Padangsidimpuan. The method used: descriptive field through a qualitative approach. Data collection techniques: interviews, observation and documentation. Data processing techniques: data reduction and data display. Compound intelligence in SDIT Padangsidimpuan can be seen from the Comprehensive Intelligence learning design, that the curriculum used is the Education Office curriculum developed into TEMA developed into Spider Web (spider web), then made SILABUS, developed into RPP. Implementation of Comprehensive Intelligence Learning means students are given the opportunity to use intelligence other than language and mathematics in the classroom, and teachers teach according to the style of student learning. Learning Evaluation uses the Observation assessment system, which is in accordance with the assessment of education in the 21st century, namely; 50% self-assessment, 30% peer assessment, and 20% teacher assessment. The Weakness of Comprehensive Intelligence Application in Padangsidimpuan SDIT is; some parents are less patient with the process SDIT is doing in learning, teachers are unable to represent all intelligence because they are not used to teaching with this concept. The significance of the application of Compound Intelligence is: The application of Comprehensive Intelligence in learning is very important, especially for children who are in development. Based on the learning design carried out, it was concluded that they had carried out the learning well, even though it was not yet maximal. Success can be seen from the achievement of the vision and mission of the school, but in terms of out put it is still relatively young to see results. That is, the results cannot be seen yet, because it is still in the experimental process to get results.