Abstract: Taking the Wanbailin Ecological Forestry Park of Taiyuan as the experimental object, the effects of tourism disturbance on the aggregates and soil organic carbon(SOC) contents in the soil layers of 0 - 20 cm and 20 - 40 cm were investigated. The results showed that the number of < 1 mm particle-size aggregates in the scenic soil were gradually increased with the increase of tourism disturbance intensity, while the number of > 1 mm particle-size aggregates, soil aggregate mean weight diameter (MWD) and mean geometric diameter (GMD) were gradually decreased. With the increase of tourism disturbance intensity, total organic carbon (TOC) in soil and all aggregates were gradually decreased. The decreasing degress of TOC in the soil layer of 0 - 20 cm soil and > 2 mm size aggregates was larger than that of 20 - 40 cm and < 0.5 mm size aggregates. The contribution rate of > 2 mm particle-size aggregates to SOC was gradually decreased, while that of < 1 mm particle-size aggregates gradually increased. In summary, tourism disturbance could significantly reduce the soil aggregates stability and SOC in the scenic spots, and damage soil quality. It was recommended that relevant departments should reasonably formulate tourism environmental capacity and improve tourists' environmental awareness, so as to reduce negative impacts.