Iron ore wastes and tailings form iron ore mining and processing are the main solid wastes impacting the sustainable development of iron ore industry. Large quantity of iron ore wastes and tailings impact mine ecology, atmosphere, underground water and soil, which need to be used and to construct green mines. This paper gives a general introduction to comprehensive use of iron ore wastes and tailings on sandstone, concrete, 3D printing, road, building materials, recycling and stone-plastic compound material, tailing fertilizer and mine ecological rehabilitation, new material research, development and engineering application. Based on review of laws of foreign green mine construction, this paper discusses the necessity of use of iron ore wastes and tailings and green mine construction and presents constructive suggestions for green mine construction.