Abstract: Soil bulk density and saturated hydraulic conductivity are two important hydraulic parameters of soil, and thereby highly affect water holding capacity of soil, infiltration, runoff formation, and soil erosion. There are great topographical changes on the Loess Plateau of China, as the projects of Grain for Green and Gully Land Consolidation have been largely implemented in recent years. It is essential to understanding the temporal change of soil bulk density and saturated hydraulic conductivity, and their response to the intensive land restoration projects for the ecological management on Chinese Loess Plateau. Taking Gutun watershed as the research area, the objective of this study was to investigate the temporal variation of soil bulk density and saturated hydraulic conductivity and their controlling factors in the intensive land restoration area, where the projects of Grain for Green and the Gully Land Consolidation were widely implemented. The sampling point of an 80 m × 80 m grid, and totally with 89 sampling sites were selected, in order to ensure that the sampling sites were uniformly distributed and represented all types of land use in the watershed. Measurements of soil bulk density and saturated hydraulic conductivity were conducted on undisturbed soil samples at each site taken from the surface soil layers (0-5 cm) on three periods in September and November 2016 and March 2017 at Gutun watershed on the Chinese Loess Plateau. The results showed that the soil bulk density ranged from 0.93 to 1.61 g/cm3, while the saturated hydraulic conductivity was from 0.01 to 7.30 cm/min (for all sites). The soil bulk density displayed a weak variability (Coefficient of Variation (CV) was 10%) among different seasons, while the saturated hydraulic conductivity indicated a strong variability (CV=166%, for all sites). The soil bulk density on slope was significantly smaller than that in gully (P<0.05), while the saturated hydraulic conductivity on slope was significantly larger than that in gully (P<0.05). The soil bulk density increased from September to November 2016, and then decreased from November 2016 to March 2017, whereas the saturated hydraulic conductivity showed an adverse trend among the three measurements. The soil bulk density under forest and grassland showed a significantly seasonal variation, whereas the saturated hydraulic conductivity displayed a significantly seasonal variation under all land use types. Topography (elevation) played an important role in determining the soil bulk density and saturated hydraulic conductivity in the area, where the projects of intensive land restoration implemented. External environment (temperature) was the controlling factor that determined the temporal change of soil bulk density and saturated hydraulic conductivity. Multivariate analysis revealed that the land use posed a significant impact on the soil bulk density and saturated hydraulic conductivity. The duration and the interaction of land use had significant impact on saturated hydraulic conductivity, not for soil bulk density. The results demonstrate that it is necessary to consider the temporal variation of soil bulk density and saturated hydraulic conductivity and their affecting factors, when modelling and predicting the relevant soil hydraulic processes. This finding can also provide a deep insight to the related eco-hydrology processes in the implemented areas of intensive land restoration.