This paper provides a comprehensive review of technologies and policy measures aimed at enhancing energy efficiency in industrial sectors. The industrial sector plays a critical role in global economic development but faces significant environmental challenges due to high energy consumption. The review highlights the importance of sustainable practices and explores various technological solutions, including process optimization, waste heat recovery, smart manufacturing, and Industry 4.0 technologies. It also examines the role of policy measures, such as government incentives, regulatory frameworks, and international collaborations, in promoting energy efficiency. The analysis considers case studies from different regions, demonstrating successful policies that have led to energy savings and emissions reduction. The paper also discusses challenges and barriers to implementing energy-efficient technologies, emphasizing the need for supportive policies, financial incentives, and collaborative efforts between governments, industries, and research institutions. The review underscores the necessity of integrating technological advancements with effective policy frameworks to achieve sustainable industrial development. It concludes with recommendations for standardization, circular economy integration, tailored solutions for SMEs, public-private partnerships, and increased investment in research and development to ensure a more energy-efficient and sustainable industrial future.This paper provides a comprehensive review of technologies and policy measures aimed at enhancing energy efficiency in industrial sectors. The industrial sector plays a critical role in global economic development but faces significant environmental challenges due to high energy consumption. The review highlights the importance of sustainable practices and explores various technological solutions, including process optimization, waste heat recovery, smart manufacturing, and Industry 4.0 technologies. It also examines the role of policy measures, such as government incentives, regulatory frameworks, and international collaborations, in promoting energy efficiency. The analysis considers case studies from different regions, demonstrating successful policies that have led to energy savings and emissions reduction. The paper also discusses challenges and barriers to implementing energy-efficient technologies, emphasizing the need for supportive policies, financial incentives, and collaborative efforts between governments, industries, and research institutions. The review underscores the necessity of integrating technological advancements with effective policy frameworks to achieve sustainable industrial development. It concludes with recommendations for standardization, circular economy integration, tailored solutions for SMEs, public-private partnerships, and increased investment in research and development to ensure a more energy-efficient and sustainable industrial future.