本文从国内外单斗挖掘机-汽车装运系统及其设备的现状出发,提出了露天矿装运系统数的概念。结合装运设备完好率研究了矿山规模与矿山工程对装运系统数的要求,以及生产管理与装运系统数的关系。指出了我国目前一个时期内,大型、特大型露天矿的装运系统数应大于6～8套。今后矿山设备完好率大大提高后,装运系统数也不能低于4套。 Based on the current status of the single-bucket excavator-motorcar shipping system and its equipment at home and abroad, this paper puts forward the concept of the number of open-pit mulching systems. According to the intact rate of shipping equipment, the requirements of mine scale and mine engineering on the number of shipping systems and the relationship between production management and shipping system number are studied. It points out that in the current period of our country, the number of large-scale and large-scale open-pit mines should be more than 6-8 sets. In the future mine equipment intact rate greatly improved, the number of shipping systems can not be less than 4 sets.