介绍了南水北调中线工程丹江口水库库区及输水总干渠沿线所经地区的自然环境状况和植物资源特征；分析了工程所造成的淹没、占地、移民和迁建用材等方面对库区和干渠沿线地段的陆生植被和植物物种资源各方面所可能造成的损失，以及有益的影响；并针对库区和干渠沿线的植物资源保护、环境恢复和地区经济重建等问题提出对策。 This paper introduces the natural environment and plant resources characteristics of Danjiangkou reservoir area and the main canal along the Middle Route of South - to - North Water Diversion Project. It also analyzes the characteristics of natural environment and plant resources caused by the project inundation, land occupation, The possible losses caused by terrestrial vegetation and plant species resources along the lots along the route, and the beneficial effects; and put forward countermeasures to the issues of plant resources protection, environmental restoration and regional economic reconstruction along the reservoir area and main canal.