Ecological slope protection building block for water conservancy project

The ecological slope protection building block for the water conservancy project comprises a building block body and a connecting unit, the building block body is provided with a vegetation cavity, the vegetation cavity penetrates through the building block in the thickness direction of the building block body, and the bottom face of the building block body is provided with a protruding check block. Each connecting unit comprises an outwards-protruding buckle, an inwards-concave clamping groove, a longitudinal rope cavity, a transverse rope cavity, a longitudinal rope fixing device and a transverse rope fixing device, and the longitudinal ropes, the transverse ropes and the inwards-concave clamping grooves are matched with the outwards-protruding buckles. The building blocks can be tightly connected, a better protection effect is achieved, construction is convenient, mechanical hoisting can be adopted, and the building blocks are more convenient and faster to maintain in the later period and low in cost; in a