网络空间技术发展迅速，新应用、新技术衍生的网络空间安全风险趋于复杂化和隐蔽化；建立特有的网络空间安全模型是国内外应对复杂安全威胁的常规做法，但现有的网络空间安全模型存在未来发展方向不明确、新技术衍生风险分析能力不足、网络空间安全防御评估所需的安全能力缺失等问题。本文从技术、学科、产业等视角入手，开展了现有的网络空间安全模型评估，梳理了网络空间安全技术体系的自身特点及其发展脉络，阐明了网络安全应用存在的迫切问题；着重从网络空间安全技术视角出发，提出了一种基于技术要素的网络空间安全模型体系框架，并利用已有安全技术和新兴技术验证了体系框架的安全分析能力。从完善网络空间安全技术体系核心框架、促进网络空间安全领域“产学研”协同、推进网络空间安全核心技术标准制定、体系化解决人工智能安全威胁等方面提出了发展建议，以期高效应对网络空间安全威胁、提升我国网络空间安全保障能力。

As cyberspace technologies advance rapidly, cyberspace security risks derived from new applications and technologies are becoming more complex and hidden. Establishing a unique cyberspace security model is a common practice to deal with complex security threats in China and abroad. However, existing cyberspace security models have problems such as unclear development directions, insufficient ability to analyze risks derived from new technologies, and lack of security capabilities required for cyberspace security defense assessment. This study evaluates existing cyberspace security models from the perspectives of technology, discipline, and industry, sorts out the characteristics and development context of the cyberspace security technology system, and clarifies the urgent problems existing in cybersecurity applications. Focusing on the perspective of cyberspace security technology, this study proposes a cyberspace security model system framework based on technical elements, using existing security technologies and emerging technologies to verify the security analysis capabilities of the system framework. This study further proposes the following development suggestions: (1) improving the core framework of the cyberspace security technology system, (2) promoting the industryuniversity-research integration in the field of cyberspace security, (3) promoting the formulation of core technology standards regarding cyberspace security, and (4) addressing AI security threats, thus to effectively deal with cyberspace security threats and enhance the cyberspace security capabilities of China.