Digital workshop for launch vehicle tank manufacturing, including key equipment for the manufacture of arrow body structure; optimization of processing of melon petals and wall plates of tank; digitization of tank welding process design; fast and precise device for tank welding; quality control of welding process; intelligent monitoring of weld quality ; Equipment fault diagnosis and early warning based on knowledge base; online high-precision inspection system; digital logistics system; real-time monitoring system for production process; lean production management system, etc.