The content and stability of soil macroaggregates in 0-20cm soil layer were studied for four typical forests (the coniferous and broad-leaved mixed forest (by the composition of Picea meyer,P. wilsonii,Larix principis-rupprechtii,Populus davidiana and Betula platyphlla), the broad-leaved forest of P. davidiana and B. platyphlla,the shrub of Hippophaer hamnoides and the Larix principis-rupprechtii forest) and an abandoned land (control) in Pangquangou Nature Reserve.The results showed that the content and stability of soil macroaggregates under the four typical forests were significantly increased (P < 0.05) by compared with the abandoned land.The content of soil aggregates >0.25mm under the four forestlands was in the following order:the coniferous and broad-leaved mixed forest > the broad-leaved forest > the shrub > the Larix forest > the abandoned land.The wet sieve test also indicated that the content of water-stable aggregates >0.5mm under the forestlands was significantly greater than under the abandoned land.Based on soil aggregate breakage rate and soil aggregate water-stability index,the soil aggregate stability was in the order:the coniferous and broad-leaved mixed forest > the shrub > the Larix forest > the broad-leaved forest > the abandoned land.According to the difference between the mean weight diameters (MWD) determined with the dry sieve and the wet sieve methods,the stability of soil aggregates followed the order:the broad-leaved forest > the coniferous and broad-leaved mixed forest > the shrub > the Larix forest > the abandoned land. Correlations analysis indicated that the content and stability of dry or wet sieve soil macroaggregates were very significantly (P < 0.01) positively related to soil organic carbon (SOC) and clay particles. The MWD was very significantly (P < 0.01) correlated negatively with clay particles.Soil macroaggregate content and the MWD were significantly (P < 0.05) affected by soil bulk density,soil aeration porosity and soil capillary porosity.This study provides certain scientific evidence for rational management of the forest resources of the reserve.