本文用数理统计方法,对森林铁路(以下称森铁)运材、汽车运材的经济指标进行了相关分析,得出了单位成本随年运量、平均运材距离而变化的经验公式。通过对单位成本的比较,提出了森铁运材和汽车运材各自的适宜范围。同时,对汽车与森铁接运运材方式予以评价。对森铁改为汽车运材的可行性进行了探讨,以便取得好的经济效果。 In this paper, the mathematical statistics method is used to analyze the economic indexes of Yunlin Railway (hereinafter referred to as Sen Iron Railway) and the transportation materials of automobiles, and the empirical formula that the unit cost varies with the annual transportation volume and the average distance of freight transportation is obtained. Through the comparison of unit cost, put forward the appropriate range of the Sen railway material and automobile transport material. At the same time, the car and Mori rail way of receiving material to be evaluated. The feasibility of converting Sen. iron to automobile transportation material was discussed in order to achieve good economic results.