Seepage-proofing structure for river bottom

The utility model relates to a seepage-proofing structure for a river bottom; the seepage-proofing structure comprises a pure earth foundation and a waterproof carpet layer, wherein a lower red clay layer is arranged between the waterproof carpet layer and the pure earth foundation; an upper red clay layer is arranged on the waterproof carpet layer; the pure earth foundation, the lower red clay layer, the waterproof carpet layer and the upper red clay layer are mutually and tightly combined together; the waterproof carpet layer is a sodium-based waterproof carpet layer and is formed by the mutual overlap joint of a plurality of waterproof carpets; the pure earth foundation is of a compacted pure earth foundation; the thickness of the lower red clay layer is 40-60cm; the thickness of the upper red clay layer is 40-60cm; a planting oil layer is laid on the upper red clay layer; and the thickness of the planting oil layer is 40-70cm. The seepage-proofing structure has good seepage-proofing effect, can effectivel