针对现有河流健康评价方法中出现的人为因素影响大、评价结果客观性差等问题,提出了基于猴群算法的投影寻踪河流健康评价模型.该方法可有效避免指标赋权的主观性,克服了一般投影寻踪模型求解方法的缺点.以滦河为例,构建河流健康评价指标体系,进而采用此模型进行评价分析.结果表明,该模型评价结果与实际情况相符,用于河流生态健康评价切实可行;滦河目前处于亚健康状态,在未来几年仍需要加强生态保护,以期达到健康状态.“,”In order to solve the problem of existing methods which may cause poor object,projection pursuit river health assessment model was proposed based on the monkey algorithm.Taking Luanhe River as the research objects,the index system of river health assessment was constructed.And then the model was used to evaluate the health status of the river.The results show that the evaluation is consistent with the actual situation,and the model is feasible in river health assessment.The Luanhe River is in the sub-healthy state.In the next few years,it is necessary to strengthen ecological protection to make Luanhe River achieve the state of health.