The invention discloses an ecological restoration method for a slope in a typical grassland area. The ecological restoration method comprises two parts of gentle slope ecological restoration and inclined slope ecological restoration. According to the gentle slope ecological restoration, indigenous plants including aneurolepidium chinense, elymus sibiricus, achnatherum splendens, artemisiafrigida willd, calamagrostis epigeios, elytrigia repens, astragalus adsurgens, melilotoides ruthenica, hordeum brevisublatum, oxytropis myriophylla, bromus ciliatus, koeleria cristata, hierochloeglabra and bromus inermis are planted in a gentle slope area of the typical grassland area for ecological restoration in two modes of single sowing planting and mixed sowing planting. According to the inclined slope ecological restoration, indigenous plants including aneurolepidium chinense, aneurolepidium dasystachys, elymus sibiricus, puccinellia tenuiflora, agropyron cristatum, achnatherum splendens, artemisia halodendron, artemisiafrigida willd, calamagrostis epigeios, elytrigia repens, astragalus adsurgens, melilotoides ruthenica, oxytropis gracillima, oxytropis myriophylla and hordeum brevisublatum are planted in an inclined slope area of the typical grassland area for ecological restoration in two modes of single sowing planting and mixed sowing planting. According to the method, the cold-resistant local plants are adopted to complete ecological restoration, the cost is low, and the survival rate is high.