Pan Borneo Highway is a road network on Borneo Island connecting two Malaysian states, Sabah and Sarawak, with Brunei and Kalimantan region in Indonesia. The aim of this research is to conduct an analysis of the development plan's potential for growth and how this prospective growth will pave the way for an increase in the difficulty of sustaining security. The objective of this research is to identify security and development issues in the regions of Sarawak and Sabah, identify the activities that are being undertaken to mitigate security challenges and increase the development of these areas through projects such as the Pan-Borneo Highway and evaluate the future impacts of these projects in the context of Security and Development doctrine. By using Security Impact Assessment Measure (SIAM) Model Analysis as research methodology, this research found that The Pan Borneo Highway will run through a broad area, it will be important to make it secure and favorable to the growth and prosperity required for future development. Traditional risks have the lowest impact compared to non-traditional threats, with smuggling, human trafficking, smuggled products, and poachers having the most impact. This research is not only seen in Malaysia but can be extended to Brunei and Indonesia's perspective, especially Kalimantan outer ring road connectivity