Abstract: The current road engineering project security types were summarized from the perspective of the road construction enterprise. The rationality evaluation model on the road construction enterprise security types based on the fuzzy set, membership function and fuzzy statistical method was proposed. A numerical example was carried out to prove that the proposed evaluation model was feasible. The research results show that the bid security, performance security and quality security are rational; the migrant workers salary security tends to be rational, and others are thought to be irrational at present. In addition, the reasons why the irrational security types appear are analyzed and the improvement measures are also proposed.

Key words: engineering management;road engineering project, road construction enterprise, security types, rationality evaluation

摘要： 从公路施工企业的角度总结了现行公路工程项目保证金缴纳种类，运用模糊集合、隶属函数和模糊统计方法建立了公路施工企业保证金种类合理性评价模型，通过实例验证了所建立的评价模型的可行性。结果显示：现阶段公路施工企业保证金种类中除了投标保证金、履约保证金和质量保证金被认为是合理的，民工工资保证金被认为趋于合理，其他的保证金都被认为是不合理的；此外还分析了出现不合理保证金的原因，提出了改善对策。

关键词: 工程管理, 公路工程项目, 公路施工企业, 保证金种类, 合理性评价