Research on the pattern of the greenhouse gas emission from the forest soil during the precipitation reduction would provide a scientific basis for the establishment of the forest greenhouse gas emissions inventory. In this study, we explored the emission pattern and its possible mechanism of CH₄, CO₂, and N₂O release from the soils of the mixed deciduous and broadleaved evergreen forest, Pinus massoniana forest and Cunninghamia lanceolata forest under the treatment of precipitation reduction. The results indicated that the flux of CH₄ uptake of the mixed deciduous and broadleaved evergreen forest was(-36.79±13.99) μg C m^-2 h^-1, which was significantly higher than that of the P. massoniana forest soil (-14.10±3.38) μg C m^-2 h^-1 or the C. lanceolata forest soil (-7.75±2.80) μg C m^-2 h^-1. The CO₂ emissions of the P. massoniana forest soil andthe C. lanceolata forest soil were (107.03±12.11) μg C m^-2 h^-1 and (80.82±10.29) μg C m^-2 h^-1respectively, which were significantly higher than those of the mixed deciduous and broadleaved evergreen forest (71.27±10.59) μg C m^-2 h^-1. The N₂O emissions of the mixed deciduous and broadleaved evergreen forest soil were (8.88±6.75) μg N m^-2 h^-1, which was significantly greater than that of the C. lanceolata forest (5.93±2.79) μg N m^-2 h^-1 and that of the P. massoniana forest (1.64±1.02) μg N m^-2 h^-1. The flux of the CO₂ emissions of the mixed deciduous and broadleaved evergreen forest soil had a significantly negative exponential relationship with the soil temperature (P<0.01). The N₂O emission of the soil had a significantly positive exponential relationship with the air temperature of the mixed deciduous and broadleaved evergreen forest and the P. massoniana forest (P<0.01), and a positive relationship with the soil temperature (P<0.05). Precipitation reduction increased the uptake of CH₄ significantly of both mixed deciduous and broadleaved evergreen soil, and the P. massoniana forests soil, but inhibited the uptake of CH₄ of the C. lanceolata forests soil. In addition, precipitation reduction significantly increased the CO₂ emissions of the mixed deciduous and broadleaved evergreen soil, and the C. lanceolata forest soil. At the same time, the precipitation reduction significantly inhibited the N₂O emission of the mixed deciduous and broadleaved evergreen forest soil, and the P. massoniana and the C. lanceolata forest soil.