Purpose: The purpose of this publication is to present the usage of Quality Circles approach in Industry 4.0 conditions. Design/methodology/approach: Critical literature analysis. Analysis of international literature from main databases and polish literature and legal acts connecting with researched topic. Findings: The integration of quality circles with Industry 4.0 signifies a powerful synergy that combines modern technologies and data-driven strategies to elevate continuous improvement initiatives within organizations. Industry 4.0, representing the Fourth Industrial Revolution, introduces smart technologies and data analytics, providing an ideal environment for quality circles to flourish. Aligned with Industry 4.0 principles, quality circles leverage advanced analytics and real-time monitoring to empower members in making informed decisions and enhancing problem-solving processes. This integration establishes a holistic framework for continuous improvement, positioning organizations to excel in the era of digital transformation and smart manufacturing. Rooted in Total Quality Management (TQM) principles, quality circles originated in Japan in the 1960s and have evolved into a cornerstone of modern organizational management globally. Key principles, outlined in Table 1, emphasize voluntary participation, training, management support, continuous improvement, and adaptability. Table 3 highlights the advantages of quality circles integration, from data-driven decision- making to improved product quality. Explored in Table 2, quality circles seamlessly integrate with Industry 4.0 and Quality 4.0 through technologies like data analytics, IoT, automation, and AI, fostering operational excellence and adaptability. However, challenges, as presented in Table 4, including data overload and cybersecurity concerns, require strategic planning and collaboration to overcome. In essence, this integration represents a transformative journey towards continuous improvement, enhanced product quality, and organizational excellence in the evolving landscape of smart manufacturing, positioning organizations to thrive in the present and adapt to future challenges. (original abstract)