Abstract: An investigation was made on the plant species and habitat factors on different eco-restored rocky slopes in Zhoushan City of Zhejiang Province, East China. The plant species and habitat factors on the slopes of 36 different habitats were recorded, and 4 diversity indices of plant species were calculated. The GLMM analysis was adopted to study the influence of habitat factors on the vegetation diversity in the process of eco-restoration on the rocky slopes. In the 1-7 years of eco-restoration on the rocky slopes, slope position had significant effects on the vegetation diversity (P<0.05). There existed obvious differences in the Shannon-Wiener index (H′), Margalef index (R), and species richness (S) at different slope positions, and the variations of the three indices showed a consistent trend, i.e., lower slope > middle slope > upper slope. Slope aspect had a significant correlation with Margalef index (P<0.05). From sunny slope, semisunny slope, and semi-shady slope to shady slope, the vegetation diversity showed an overall increasing trend. With the increase of ecorestoration years, the vegetation diversity increased gradually, but had no significant difference (P>0.05). Slope angle, elevation, and soil thickness had no significant effects on the vegetation diversity (P>0.05). During the process of eco-restoration, the Pielou index (J) remained stable, and had no significant correlations with habitat factors. Therefore, slope position and slope aspect were the most important factors affecting the vegetation diversity, and the Shannon-Wiener index and Margalef index were the main indicators reflecting the plant community change in the process of eco-restoration on rocky slopes.