With the development and application of the Internet and Intranet, it shows that the response of the traditional manufacturing model to the information lags behind the change. Based on the computer technology, web technology and modern communication technology, the information flow of networked manufacturing system can be transferred timely among virtual alliance regardless of regions. So social manufacturing resource can be used fully. In order to share timely the information and optimize the social manufacturing resource about designing and producing car wheel hub, a solution to establishing networked manufacturing system of car wheel hub based on ASP and SQL Server was put forward. According to detailed analysis the process of design information transferring and the hub designing, a prototype networked manufacturing system of car wheel hub had been developed. It has very great practical value.