The invention relates to an auto fill ecology system (AFES) automatically filling side slope vegetation ecological restoration construction method in the technical field of ecological restoration, comprising the following steps: step one: clearing a construction area, and collecting data; step two: paving a high-strength flexible braided fabric supporting body; and step three: pouring a biological matrix into the high-strength flexible braided fabric supporting body, and fixing the supporting body. The high-strength flexible braided fabric supporting body adopted in the method provided by the invention has stronger tensile capacity, thus greatly reducing the early-stage engineering quantity of the vegetation ecological restoration. The construction process of the method provided by the invention is basically mechanical operation, greatly improves the construction efficiency, can perform all-weather construction, is not influenced by general changes of the whether, and has simple procedures and high safety.