Abstract: Manual street light monitoring process affects on tardiness of fixing of broken light. This can cause traffic accidents and other crimes. This study is aimed to make street light monitoring application that can be used by people by using SMS Gateway service to the Regional Office of Ministry of Energy and Mineral Resources of Kepahyang district. This study uses system development methodology by doing data-need analysis. This study uses structured modeling design started by file design to input output design. The design is implemented into Visual Basic Net Gammu and using MySQL data base. The result of this study is a street light monitoring application based on SMS Gateway that can be used by the Regional Office of Ministry of Energy and Mineral Resources of Kepahyang district.