讨论了工程承包联营体环境动荡性评价指标和工程承包联营体柔性评价指标以及相应的评价方法。通过柔性分析，可以判断出工程承包联营体各方面的柔性程度能否与其相应的环境和内外部因素相适应，并为制订调整联营体柔性度的措施提供帮助，进而提高联营体的管理水平和竞争力。

The environmental turbulence evaluation index and flexibility evaluation index of joint venture (JV) were discussed, and corresponding evaluation method was proposed. The flexibility analysis can determine whether the various flexibility status of JV adapts to the competition environment and the internal and external factors. The results can assist to provide advice for the strategies and measures selection and adjust the JV's flexibility, and improve the competitiveness and management level of JV.