Fecha de publicación: 08/07/2015 Fuente: Wipo tomato The invention relates to a tomato seedling breeding matrix using tomato straws as a raw material and a preparation method thereof and belongs to the technical field of organic seedling breeding. Raw materials include tomato straws and vermiculites in volume ratio of 1:4, and the tomato straws are from tomato uproots plants or waste in the planting process. The proportion of nutritional ingredients of the tomato straws is equivalent to the proportion of nutrient absorption for tomato growth, so that a tomato straw stubble compost is most suitable for tomato seedling breeding. Tomato seedlings bred by the tomato seedling breeding matrix are superior to tomato seedlings bred by a conventional seedling breeding matrix in strong seedling index, root growth situation and other aspect. Compared with a current conventional seedling breeding matrix with the grass carbon to vermiculite ratio of 2:1, grass carbon resources are saved, seedling breeding cost is reduced, tomato straw resources are also utilized, and the tomato seedling breeding matrix is safe, environment-friendly and free of pollution and facilitates promotion of cost-saving, efficient and sustainable development of industrial seedling production.