The invention discloses a kumquat environment-friendly and green substrate capable of enhancing yield, and belongs to the technical field of plant cultivation. The substrate is prepared from, weight ratio, 5-15 parts of deep mountain humus soil, 5-8 parts of mushroom residues, 2-6 parts of peat, 8-16 parts of ceramsite, 2-10 parts of animal manure, 10-19 parts of modified diatomite, 2-9 parts of tobacco stems, 1-5 parts of sawdust, 5-12 parts of plant straws, 3-9 parts of rice husks, 5-8 parts of decomposed straws, and 0.5-2.5 parts of complex fertilizer. The cultivated substrate is scientificand reasonable in formula and low in cost; through the mutual collaborative cooperation between each component, the substrate is balanced in nutrition so that yield can be enhanced, and the substrateis strong in operationality so that the substrate is suitable for industrial production; and the substrate has good drainage and permeability, so that insect disease can be effectively controlled, the utilization rates of the substrate can be enhanced, and a certain of economic benefits can be brought.