This book gathers selected high-quality papers presented at the 3rd International Conference on Networks, Communications and Intelligent Computing (NCIC 2025), held during October 17-19, 2024, in Jiaozuo, China. The proceeding of NCIC 2025 targets a mixed audience of academicians and industry practitioners who are deeply involved in their respective technical fields. This book offers a platform for scholars and researchers to present their findings, methodologies, and applications in the fields. Readers will find a diverse range of topics including advancements in 6G, IoT implementations, green networking practices, and the role of artificial intelligence in enhancing networking efficiency. The primary beneficiaries of this book are professionals, researchers, and academics in the fields of networks, communications, and intelligent computing, as well as students pursuing advanced studies in these areas. The contents are curated to enhance knowledge, foster innovation, and encourage the practical application of emerging technologies in the industry. Additionally, the proceedings are not only a record of the conference's scholarly papers but also serve as a valuable resource for ongoing research and development activities within these cutting-edge technological domains.