This research was aimed to describe 1) the curriculum implementation at High School 2 Padangsidimpuan; 2) to describe the supporting factors and inhibiting factors of curriculum implementation at State High School 2 Padangsidimpuan; 3) to find the solution towards the factors inhibiting the curriculum implementation at State High School 2 Padangsidimpuan; 4)to describe the steps on curriculum development at State High School 2 Padangsidimpuan. This research was qualitative approach. The participants were the stakeholders of State High School 2 Padangsidimpuan. Observation and interview were used to collect the data. The findings showed that the implementation of curriculum at State High School2Padangsidimpuanwas not optimally implemented, due to lack of mastery the competence of teachers1)teachers cannot arrange learning planning based contextual; 2)the supporting factor of curriculum implementation at State High School 2Padangsidimpuanwere from quality achievement, availability of media and school gerographic. Meanwhile found the factors inhibiting the curriculum were lack of teachers’ pedagogy mastery, professional competence, and social competence;3)there were solutions towards the factors inhibiting the curriculum implementation at State High School 2Padangsidimpuansuch produce meaningful teaching, change the concept of curriculum paradigm, change the paradigm of teaching into based religious, and provide motivation for students; and 4) the steps were used to develop the curriculum such planning instruction, learning experiences, and learning outcomes assessment.