The Second International Conference on Computer Science and Network Security will be held in Lanzhou, which is an international academic exchange event focusing on the latest developments in the field of computer science and cutting-edge technologies in network security. The conference aims to provide a high-level communication platform for researchers, engineers, and industry professionals from around the world to jointly explore new discoveries, concepts, and trends in computer science theory, application technology, and network security. Attendees will have the opportunity to share their latest research findings and engage in in-depth discussions on the challenging issues currently facing them. The conference will cover many topics, including but not limited to algorithm design and analysis, artificial intelligence and machine learning, big data processing technology, cloud computing and edge computing, Internet of Things security, blockchain technology and its applications, network attack and defense strategies, privacy protection mechanisms, etc. In addition, special seminars, poster displays, and invited presentations will be held to invite renowned experts in the field to give keynote speeches and promote interaction and communication among attendees. Lanzhou, as the venue for this conference, is one of the important centers of science, education, and culture in northwest China, with abundant educational resources and research institutions. The convening of this conference will not only help promote the development of computer science and network security in the local and even national areas, but also further strengthen international academic cooperation and technical exchanges, and jointly build a more secure and reliable information technology future. For researchers interested in participating in this grand event, this is a rare opportunity to broaden their horizons, understand industry trends, and promote personal career growth and development.