Plant-growing type eco-concrete and preparation method thereof

The invention discloses a plant-growing type eco-concrete. The plant-growing type eco-concrete consists of a concrete framework structure and a culture medium, wherein the concrete framework structure mainly comprises cement, water, rock ballasts and a water reducing agent, the weight ratio of the cement to the water to the rock ballasts is 1:0.28-0.45:4-6.5, and the added amount of the water reducing agent is 1 to 3 percent of that of the weight of the cement; and the culture medium consists of natural soil, a water retention agent and a sustained-release fertilizer in a weight ratio of 1:0.1-0.2:0.01-0.015. A preparation method of the plant-growing type eco-concrete comprises the following steps of: manufacturing the concrete framework structure; maintaining the concrete framework structure; filling the culture medium; sowing grass seeds; covering and compacting the culture medium on the surfaces of the grass seeds; putting precast blocks in a place to be paved; and maintaining the precast blocks until root systems of the grass seeds grow into the soil under the concrete. Compared with the prior art, the plant-growing type eco-concrete has simple materials and a simple structure, and the preparation method is simple and easy to control.