Network manufacturing, with the development of network economy, is advanced manufacturing mode. It’s applied widely. The engine manufacturing process of advanced motor company is studied and analyzed in this paper. The network system of engine manufacturing process is designed, which is based on the platform of .NET and SQL Server database. The network manufacturing of engine is realized. It reduces production cost and improves company’s core competitiveness. Carrying out the system’s parted purview management, it’s safe and credible.