Pennisetum sinese remediation technology for heavy metal contaminated soil

The invention discloses a pennisetum sinese remediation technology for heavy metal contaminated soil, wherein the technology comprises the following steps: S1, planting pennisetum sinese in the heavy metal contaminated soil; S2, after the pennisetum sinese in the contaminated soil is mature, harvesting to obtain slurry, and adding bacillus strains into the slurry to obtain strain slurry; S3, planting herbaceous plants in the cultivation soil in the S2 through sowing and breeding; S4, transplanting the herbaceous plants obtained in the S3 into the heavy metal contaminated soil; and S5, after the herbaceous plants are mature, harvesting the herbaceous plants, crushing and juicing the herbaceous plants to obtain herbaceous slurry, removing heavy metal elements in the herbaceous slurry through methods such as a chemical precipitation method, an electrochemical method, an adsorption method and a membrane separation method, after the herbaceous plants are mature, crushing and homogenizing the pennisetum sinese to s