Underwater forest grass blanket for riverbed protection

The utility model discloses an underwater forest grass blanket for riverbed protection, which covers a riverbed and plays a role in protecting a riverbed base. The underwater forest grass blanket comprises a planting substrate used for covering a riverbed, a submerged plant layer fixedly installed on the planting substrate, a cultivation net fixedly covering the submerged plant layer, an aquatic animal layer attached to the cultivation net and a ceramic particle cushion layer fixedly installed on the planting substrate. The planting substrate comprises an aquatic plant mud layer, a clay layer and a plant fiber layer which are sequentially arranged from bottom to top. The ecological mode that submerged plants and aquatic animals are combined is adopted, aquatic animal and plant communities in the grass blanket are optimized, the selectivity is good, the effect of pertinently guaranteeing the health of a river channel water ecological system can be achieved according to local conditions, in addition, the degree