Abstract: The overexploitation of the Phyllostachys pubescens forest leads to the deterioration of the forest ecosystem. Undergrowth restoration in the Phyllostachys pubescens forest can improve undergrowth structure, enhance soil and water conservation function and improve soil properties. Therefore, the assessment of soil physical properties under different undergrowth restoration patterns in the Phyllostachys pubescens forest is helpful to guide its operation and management. The grey correlation analysis method was applied to study the effects of two patterns on soil water holding capacity and pore condition. One pattern was planting shrub, the other one was planting shrub and grass. The results showed that the undergrowth restoration can increase the number of soil noncapillary pores and improve soil water holding capacity by 11% ~ 26%. Soil water holding capacity was closely related to the amount of soil pores. The mean correlation degrees of net Phyllostachys pubescens forest, undergrowth of planting shrub and undergrowth of planting shrub and grass were 0.5273, 0.6441 and 0.7652, respectively. It was indicated that the physical properties of the shrub-grass pattern was the best and can significantly improve the soil physical properties.