The invention belongs to the technical field of Chinese herb, feed and microorganism fermentation, and particularly relates to a preparation method for a suckling piglet Chinese herb health premix. The preparation method comprises: mixing corn powder, kelp powder, lobed kudzuvine root powder, milkvetch root powder, hawthorn powder, gelsemium elegans benth powder, a tomato slurry and water, blending into a thick slurry, carrying out heating soaking, sterilization and cooling, inoculating a probiotic seed solution, fermenting to prepare a probiotic fermentation Chinese herb, drying and crushing the probiotic fermentation Chinese herb to prepare probiotic fermentation Chinese herb powder, and uniformly mixing and stirring the probiotic fermentation Chinese herb powder, mineral elements, vitamins, amino acids and an antioxidant to prepare the probiotic fermentation Chinese herb health premix. The prepared suckling piglet Chinese herb health premix is rich in organic iodine, gelsemine, astragalus polysaccharides, puerarin, licopersicin, maslinic acid, probiotics and other active substances, and has health functions of anti-diarrhea, growth promoting, immune function enhancing and the like. In addition, the preparation process is simple, and the raw material utilization rate is high.