Abstract: Soil greenhouse gas emission during non-growing season plays an important role in ecosystem carbon and nitrogen cycling in mid and high latitude regions. However, the effects of harvest on greenhouse gas emission during non-growing remain unclear. We measured the fluxes of CO₂, CH₄ and N₂O and environmental factors (soil temperature, moisture, soil organic carbon and total nitrogen etc.) during non-growing season from four kinds of forested swamps (Alnus sibirica swamp, Betula platyphylla swamp, Larix gmelinii-Carex schmidti swamp, L. gmelinii-moss swamp) under different harvest disturbances for 10 years, including control (no cutting), 45% selective cutting, clear cutting, by using static chamber technique and gas chromatography in Xiaoxing’an Mountains, Northeast China. The aim of this study was to reveal the effects of harvest on greenhouse gas emission from temperate forested swamp during non-growing season and the main controlling factors. The results showed that the average fluxes of CO₂, CH₄ and N₂O from four kinds of swamps distributed in 53.08-81.31 mg·m^-2·h^-1, 0.09-3.07 mg·m^-2·h^-1 and 4.07-8.83 μg·m^-2·h^-1, respectively. Clear cutting significantly increased the fluxes of CO₂, CH₄, and N₂O from A. sibirica swamp and L. gmelinii-moss swamp. Selective cutting significantly increased CO₂ fluxes from B. platyphylla swamp and L. gmelinii-moss swamp and decreased CO₂ flux from A. sibirica swamp. Selective cutting significantly decreased CH₄ fluxes from all the four forested swamps and N₂O flux from Larix gmelinii-Carex schmidti swamp. The CO₂ fluxes from natural forested swamps were strongly influenced by soil temperature, soil organic carbon and C/N. CH₄ fluxes were influenced by soil temperature, soil organic carbon. N₂O fluxes were affected by air temperature and soil pH. Harvesting increased the correlation between soil CO₂ flux and air temperature, soil moisture and snow depth, the correlation between soil CH₄ flux and air temperature, soil moisture and C/N, as well as the correlation between soil N₂O flux and soil total nitrogen and C/N. The annual cumulative contribution of CO₂, CH₄ and N₂O emission from natural forested swamp during non-growing season were 33.2%-46.5%, 6.3%-9.1% and 61.5%-68.3%, respectively. The clear cutting increased the annual cumulative contribution of CO₂ from B. platyphylla swamp and L. gmelinii-moss swamp and that of N₂O from other swamps except L. gmelinii-moss swamp. The selective cutting increased the annual cumulative contribution of CO₂, CH₄ and N₂O from L. gmelinii-C. schmidti swamp and L. gmelinii-moss swamp, but decreased that from B. platyphylla swamp. The annual cumulative contributions of N₂O and CO₂ during non-growing season were relatively high from temperate natural forested swamps, and clear cutting further increased their contribution, while the selective cutting just increased that of CH₄ during non-growing season.