NOVELTY - Bioremediation of rubbish compost heavy metal leakage system by using microorganisms and Festuca arundinacea comprises: (i) taking annual Festuca arundinacea L. as an experimental material, domestic waste compost from Tianjin small starch compost factory, and test soil as surface layer soil, respectively drying the compost and soil and sieving, isolating Bacillus subtilis and Actinomycetes from Tianjin small starch compost treatment plant, preparing a leaching solution, and adjusting pH to 5.5-6 using hydrochloric acid; and (ii) performing the test method.    USE - The method is useful for increasing vertical migration of enrichment hindered heavy metals comprising cadmium, chromium, copper and nickel in the plants (claimed).    ADVANTAGE - The method: reduces the harmful substances and heavy metals from the waste compost and soil; induces the lawn plants under the synergistic effect of chemical chelating agents and microorganisms; increases the absorption time in the compost, and heavy metal enrichment; and reduces the migration of the heavy metals into the deep soil.    DETAILED DESCRIPTION - Bioremediation of rubbish compost heavy metal leakage system by using microorganisms and Festuca arundinacea comprises: (i) taking annual Festuca arundinacea L. as an experimental material, domestic waste compost from Tianjin small starch compost factory, and test soil as surface layer soil, respectively drying the compost and soil and sieving by using a 2 mm sieve for future use; where the insulation material from bottom to top comprises (in g) zeolite (20), vermiculite (20) and sawdust (20), isolating Bacillus subtilis and Actinomycetes from Tianjin small starch compost treatment plant of domestic waste compost, preparing a leaching solution by using ammonium sulfate, sodium sulfate, potassium sulfate, magnesium sulfate, calcium nitrate, magnesium nitrate and sulfuric acid, where the concentration of sulfate ions, nitrate ions, chloride ions, ammonium ions, magnesium ions, calcium ions, potassium ions and sodium ions is respectively 14.96, 6.54, 1.68, 3.71, 0.82, 1.38, 0.64 and 0.78, and adjusting pH to 5.5-6 using hydrochloric acid for the future use; and (ii) performing the test method by (a) selecting lawn matrix compost, performing interlayer arrangement by selecting polyvinyl chloride (PVC) pipe (diameter 7.5 cm; length 25 cm), where the bottom of the pipe is fixed with a nylon mesh (diameter 0.2 mm) to support the pipe in the soil and compost, and lifting the pipe, where the lower part of the pipe is provided with a conical bottle connected with filtrate, (b) filling 500 g of dry soil into the PVC pipe, paving, filling horizontal layers of zeolite (20 g), vermiculite (20 g) and sawdust (20 g) respectively from bottom to top, then introducing them into the compost (280 g), and paving in the layer, (c) setting up microbial inoculum and lawn matrix layer system to establish sowing of Festuca arundinacea (0.6 g) in the PVC pipe, after 10 days of sowing, sequentially adding distilled water (1.4 ml), beef extract peptone culture medium (0.7 ml) and Gauze's medium No.1 (0.7 ml), Bacillus subtilis (1.4 ml), Actinomycetes (1.4 ml), and a complexing agent of Bacillus subtilis liquid (0.7 ml) and Actinomycetes liquid (0.7 ml), after inoculating, re-growing the lawn plant and for 30 days, mowing, placing the cut lawn plant of Festuca arundinacea at 80 degrees C in an oven for drying to obtain constant weight, and recording the ground biomass, (d) the next day after mowing, using artificial leaching solution (150 ml) equal to 34 mm of precipitation, leaching for the first time, then after 7 days, spraying the solution (total 600 ml) for 4 times ( each time 150 ml), respectively weighing and collecting in a conical flask, mixing them uniformly for testing; where: water was irrigated during the Festuca arundinacea planting period; the whole field water was maintained to be 60-65% during planting; the temperature and relative humidity are respectively 14-25 degrees C and 30-55%; the illumination intensity is 350-800/ mu mol m-2 second-1, and (e) using TAS-990 atomic absorption spectrophotometer to measure the content of heavy metals comprising cadmium, chromium, copper, lead and nickel in the digestive liquid. An INDEPENDENT CLAIM is also included for an application of the above-mentioned method in increasing vertical migration of enrichment hindered heavy metals comprising cadmium, chromium, copper and nickel in plants, comprising using the complexing agent of Bacillus subtilis liquid (0.7 ml) and Actinomycetes liquid (0.7 ml), and horizontal isolating layers comprising (in g) zeolite (20), vermiculite (20) and sawdust (20).