Using　the　advantages　of　integration　technique　based　on　Web　Services,　a　CAx/PDM　integration　framework　was　constructed　to　realize　the　integration　of　PDM　and　other　application　systems.　With　the　framework,　the　encapsulation　of　PDM　function　modules　based　on　.NET　Framework　was　achieved,　a　dynamic　integration　method　of　PDM　and　CAx　systems　was　provided,　the　middle　format　of　exchanging　data　for　PDM　and　other　application　systems　was　represented　by　the　XML(　Extensible　Markup　Language)　schema　to　share　the　information　of　enterprise　application　systems.　The　proposed　integration　technology　can　be　effectively　used　to　CAx/PDM　integration,　and　meets　the　manufacturing　enterprise＇s　requirement　on　integrating　application　system　suitably.