In order to address the issue of time-consuming and labour-intensive substrate filling operations for citrus seedling soft pots in China, a vibration filling scheme for such pots was proposed and a vibration filling production line designed, capable of filling 36 plastic soft pots or four non-woven fabric large pots at a time. Through theoretical analysis and simulation calculations, the structural design and param-eters of the key components of the substrate mixing and conveying unit, the filli