Based on the research of Web vulnerability database and the situation of vulnerability database construction at home and aboard, the paper designed and implemented a vulnerability database focused on Web vulnerabilities. In consideration of both the features of Web vulnerability and the differences with traditional vulnerability, the paper designed the Web vulnerability database description model, enriched the ways of Web vulnerability collection, redefined the Web vulnerability scoring attributes and added the Web vulnerability reproduce function. The Web vulnerability database guarantees the comprehensive collection of Web vulnerability information and the standard release of Web vulnerability information, helps analyze the Web vulnerability information and data better, and provides a powerful technical support to Web security.