Through the experiments of the seedbed cultivation,the influence of rice seedling growth characteristic and phosphorus absorption on the low nutrient soil of available phosphorus that using sturdy-seeding agent which inoculates penicillium of dissolving phosphorus.The result indicated that in the low phosphorus condition,using sturdy-seeding agent which inoculates fungi of dissolving phosphorus could obviously improve the plant height,increase fresh and dry biomass of the shoots,root vigor,phosphorus content and P uptake of the shoots.In the five treatments,compared to the blank control groups,the plant height of rice seedling increases 16.81%,fresh biomass 21.28%,dry biomass 12.42%,phosphorus content 31.11% and P uptake 44.03% for the shoots,the results were good.Next was P1 and P4 treatments,especially in the P1 treatment,the dry and fresh biomass,phosphorus content and phosphorus uptake of the roots were highest than any other treatment.In low available phosphorus soil,using sturdy-seeding agent which inoculates bacteria of dissolving phosphorus could improve the seedling stage growth of crop,activating sparingly soluble phosphorus,increasing utilizing efficiency of soil phosphorus.