The invention relates to a pennisetum hydridum seed soaking and seedling raising system device. The pennisetum hydridum seed soaking and seedling raising system device comprises a seed soaking and seedling raising frame and a seed soaking pond, wherein 12 to 30 groups of paired pulley grooves are arranged in the seed soaking and seedling raising frame, 12 to 30 seed soaking and seedling raising trays are installed on the pulley grooves, and a slide-way which is used for the seed soaking and seedling raising frame to enter and exit is arranged in the seed soaking pond. By adopting the device, the industrialized seedling production and management are facilitated, the seedlings are cultivated in a centralizing manner, and the survival rate of the seedlings is greatly increased.