The world community restated its commitment to sustainable development by advocating the 2030 Sustainable Development Agenda and its 17 Sustainable Development Goals (SDGs) at the United Nations Sustainable Development Summit on 25th September 2015. This agenda is an action plan for people, the planet and prosperity. Therefore, this paper deals with 2030 agenda sustainable development goal 16 as a necessary support for achieving peace, justice and building strong institutions in Sri Lanka. The aim of the study is to provide a comprehensive and detailed understanding of Sri Lanka’s the current status and progress of Sri Lanka in relation to the SDGs goal 16 of Agenda 2030. The research problem will therefore seek to identify the unexplored challenges that need to be addressed in order to improve the implementation in goal 16 of the 2030 Agenda. This study will also discuss initiatives to achieve the goal 16 of SDGs in implementing the 2030 agenda. To ensure optimal reflection and evaluation, this paper uses a mixture of qualitative and quantitative data collection for analytical methods. Hence this paper argues that, it is essential to strengthen law enforcement institutions and appropriate monitoring mechanisms to ensure peace and justice in Sri Lanka.