Safety is a top priority in the oil and gas industry because it is a high risk industry that can cause major accidents, environmental damage, and significant economic losses. This study aims to identify weaknesses in the access system and develop a biometric system to improve security and operational efficiency. The security level of the access system in hazardous areas is still low due to the absence of automatic validation, an unintegrated system, limitations in manual verification, and the use of easily misused identity cards, which could potentially lead to access violations and endanger work safety. The method used is Developmental Research with the ADDIE model (Analyze, Design, Development, Implement, Evaluate). The biometric system was designed using specialized hardware and software, with effectiveness measured through a comparison of conditions before and after implementation. The research results show a significant improvement in the accuracy of identity verification and worker recording, a reduction in unauthorized access violations, and accelerated validation processes for entering and exiting hazardous areas. The implementation of the biometric system enhances overall access control security and efficiency. The ADDIE model has proven effective in supporting structured and systematic system development. This system also strengthens workplace safety management and is recommended for broader integration and further testing under extreme operational conditions. The implementation of biometric based access control systems supports the achievement of SDG 9 in encouraging technological innovation in the digital and physical security sectors, while improving the efficiency and reliability of modern industrial infrastructure.