The aim of the study is to show the effects of the legume Pueraria Phasoeloides on the biological parameters of the waste rock soils (saprolites) at the Agbaou gold mine, in the center-west of Côte d’Ivoire. Methodology and results: Macroinvertebrates were harvested from the monolytes using the systematic sampling method. The use of the legume Pueraria Phasoeloides helped to solve the problems of agricultural land in the area. The inventories carried out in the sterile park 1 of the Agbaou gold mine allowed to discriminate over the three years a total of 1981 specimens from the overall population. We counted 540 individuals (27.25%) on Ramp 1; 743 (37.50%) on Ramp 4, 448 (22.61%) on Ramp 6, and 250 on Ramp 8 (12.61%). Ramps 1 and 6 are the most diversified stations with 540 and 448 taxa respectively, followed by Ramps 4 (743 taxa) and 8 (250 taxa), which are poorly diversified. Shannon's diversity index is less than 3 on the four ramps in this zone (sterile park 1 in Agbaou), thus reflecting a lower biological diversity in these environments. Although mining activity is a threat to the various spheres of the environment, the rehabilitation of the waste rock piles by the Pueraria Phasoeloides is a form of compensation for the damage caused by the adverse effects of mining. It appears as an ecosystem that locally increases biological diversity and requires urgent implementation actions

Keywords : Pueraria Phasoeloides, Rehabilitation, Mine Site, Biological Survey of Microorganisms and Macroorganisms, Agbaou Gold Mine (Central-Western Côte d’Ivoire).