Hairui seedling plug adopts one seedling and one plug. The density, volume and fiber distribution of each matrix are basically the same, which promotes the uniform distribution of water and nutrients in the matrix, high seed germination rate and neat emergence, and reduces the risk of seedling production. The independent and stable structure of Hairui rock wool seedling plug is suitable for mechanized or artificial transplantation, and the root system is not damaged during transplantation. Hairui seedling plugs can be used with plugs. The trapezoidal seedling plug can directly raise seedlings, eliminating the cost of plugs.