The utility model discloses an ecological revetment structure used for soil fixing and moisturizing of a high-liquid-limit soil slope. The ecological revetment structure is characterized in that a slope protection system is arranged on the surface of a slope, a root pile anchorage system penetrates the slope protection system to be planted into a shallow slope layer, and an ecological slope protection net of the shallow slope layer is jointly formed; pile holes are drilled in the slope, movable piles provided with wooden positioning supports are placed in the pile holes, and organic water base materials are filled into the pile holes; the slope protection system is characterized in that grass is planted in framework, the surface of the slope is slotted around root piles to build the framework, flanged water retaining bricks are arranged on the edge of the framework to form a slope drainage groove, a lateral concentration drain is longitudinally arranged at each certain distance in the slope along a slope body, expansion joints are synchronously arranged among the lateral drains, the organic water base materials are refilled in the framework prior to seed sowing and grass planting, and compact formation is achieved. The ecological revetment structure is simple in structure and convenient to use; the problems about reinforcing and protecting, dewatering and moisturizing and environmental landscape protecting of the high-liquid-limit soil slope which is prone to drying shrinkage and cracking and the shallow surface sliding are solved.