虚拟企业是提高制造企业敏捷性和竞争力的重要手段.对合作伙伴选择问题,建立了以生产负荷为主要影响因素的0-1整数优化目标函数求解模型.根据低效候选企业的概念,提出了缩减解空间的方法和步骤以降低问题的计算复杂度.应用内嵌子项目调度的分支定界算法求解此问题.应用研究算例以验证算法的有效性,结果表明建立的模型与求解方法可以获得满意的结果. The virtual enterprise is an important means to improve the agility and competitiveness of manufacturing enterprises.On the issue of partner selection, a 0-1 integer optimization objective function solving model with production load as the main influencing factor is established.According to the concept of inefficient candidate enterprises In order to reduce the computational complexity of the problem, a solution to this problem is proposed by using the branch-and-bound algorithm of inline subproject scheduling.The application of the example to verify the validity of the algorithm shows that the model and the solution method Satisfactory results can be obtained.