CS-Eval is a large-scale network security capability evaluation set jointly established by Alibaba Security, Fudan University, and University of Chinese Academy of Sciences. The dataset covers 11 major network security fields, 42 sub-fields, 4,369 multiple-choice questions, true-or-false questions, and knowledge extraction questions, providing knowledge-based and practical comprehensive evaluation tasks, supporting user self-evaluation, and providing reference and inspiration for the implementation of large-scale network security.