Abstract:In order to solve the problem that traditional network security vulnerability scanning is limited, resulting in poor security carrying capacity of network application environment, a network security vulnerability detection system based on blockchain technology is designed. The crawler module is used to capture the information parameters needed by the task management module, and the vulnerability data are fed back to XSS detection module, SQL detection module and CSRF detection module according to the specific categories of vulnerability data. On this basis, it defines the actual transaction format of block information, combines various intelligent contracts, realizes the directional analysis of system functional requirements, and completes the construction of relevant use case diagrams. Through the above-mentioned software and hardware equipment foundation, the design of network security vulnerability detection system based on blockchain technology is completed. The experimental results show that compared with C / s network vulnerability detection system, the security classification conditions of the detection system based on blockchain technology are more detailed, and the coverage of scanning web vulnerabilities is more extensive, which is conducive to the stable improvement of network application environment security carrying capacity.