This article aims to determine implement curriculum development at MTs YTI Sukamerang Garut. The method used in this research is descriptive qualitative, with data collection techniques through instruments, interviews and triangulation then simple analysis is carried out. The results showed the role of teachers in the implementation of the madrasah curriculum at MTs YTI Sukamerang by looking at the percentage based on the achievement indicators and the percentage of respondents from the two teacher groups. Where the highest percentage based on the indicators of the two groups can be seen that the teacher has compiled the annual program, semester, lesson plans and KKM. So it can be concluded that the role of curriculum development that has been implemented at MTs YTI Sukamerang has been implemented properly by looking at the percentage based on indicators of achievement and based on respondents. The results of this study can be used as recommendation material for further research related to curricula with different indicators and places.