讨论了多模式、多资源约束条件下，如何综合考虑工期、成本和资源平衡三个目标这一问题，提出了该问题的模型，并给出了利用遗传算法来解决该问题模型，最后结合一个应用实例来说明模型及算法。-Discussed the multi-mode, multi-resource constraints, how considering duration, cost and resource balance three goals of this problem, a model of the problem, and gives the use of genetic algorithms to solve the problem model, and finally with a application examples to illustrate the model and algorithm.