The invention relates to the technical field of agricultural planting, and particularly relates to a seed dressing agent capable of increasing germination rate of codonopsis pilosula. The seed dressing agent is prepared from the following raw materials in percentage by weight: 3-9% of folium artemisiae argyi powder, 12-18% of compound microorganism bacterium agents, 8-16% of trace element solutions, 3-12% of metalaxyl wettable powder, 6-11% of sophocarpidine powder, 1-2% of silthiopham, 1-3% of pimacol, 3-5% of fulvic acid, 1.5-4% of polyaspartic acid, 4-6% of potassium polyacrylate and the balance of water. The purpose of the invention aims to provide the seed dressing agent capable of increasing germination rate of codonopsis pilosula; the seed dressing agent is capable of obviously improving the germination rate of codonopsis pilosula seeds and the survival rate of the codonopsis pilosula seedlings, lays a solid foundation for increasing the survival rate of transplanting, and is safeguard of artificial large-area high-yield planting of codonopsis pilosula.