中国林产品采购经理指数(PMI)作为表征林产制造业走势兴衰的晴雨表,其权重的合理性是保障指数先导性、有效性的核心条件。通过对中国林产品PMI进行分析可以发现,现行权重体系不影响其作为“行业晴雨表”的先导性功能,但是赋权方式存在优化空间。文中提出的优化的权重体系更有利于提升林产品PMI对行业经济走势的预测能力。 As a barometer of the rise and fall of the forest products manufacturing industry, the PMI of China is a key indicator of the leading and effective index. Through the analysis of PMI in China, it can be found that the current weighting system does not affect its leading function as a “barometer of the industry”, but there is room for optimization in the way of empowerment. The optimized weighting system proposed in the article is more conducive to improving the ability of forest products PMI to forecast the economic trend of the industry.