Ecological riverbed filled with rubble

The utility model relates to a grouted rubble ecological riverbed, which comprises a main river channel extending along the flowing direction of an ecological base flow; the side beaches are located on at least one side, in the length direction, of the main river channel, and each of the main river channel and the side beaches comprises a riverbed base layer, a fine aggregate concrete layer, a block stone scour prevention layer and a reserved ecological space layer; the fine stone concrete layer is laid on the upper surface of the riverbed base layer, the block stone scour prevention layer comprises a plurality of block stones, a part of the block stones are located in the fine stone concrete layer, the other part of the block stones are exposed out of the fine stone concrete layer, gaps are formed between the block stones at least partially exposed out of the fine stone concrete layer, and the gaps form a reserved ecological space layer. The reserved ecological space layer comprises a plant layer and a livin