Moso bamboo (Phyllostachys edulis) forests represent crucial carbon sink ecosystems in subtropical China. However, long-term abandonment leading to stand degradation not only weakens their carbon sequestration capacity but may also reduce soil CH₄ uptake and enhance N₂O emissions by altering soil microenvironments. In recent years, strip cutting transformation has been widely adopted for ecological restoration of abandoned moso bamboo forests, yet its impacts on soil CH₄ and N₂O fluxes remains unclear. This study conducted in abandoned bamboo forests in Anji County, Zhejiang Province, established six treatments: abandoned control (CK), intensive management (IM), and three strip cutting transformation intensities (light: LC; moderate: MC; heavy: HC), along with clear-cutting transformation (CC). Through 12 months of continuous in-situ monitoring using the static chamber-gas chromatography method combined with soil factor measurements, the results showed: (1) The annual soil CH₄ uptake for CK was (8.68±0.08) kg hm^-2 a^-1, and the annual N₂O emissions was (1.46±0.02) kg hm^-2 a^-1. Compared to CK, LC MC, and HC significantly reduced CH₄ uptake by 11.40%-32.37% (P < 0.05) and increased N₂O emissions by 17.12%-47.26% (P < 0.05), with transformation intensity showing significant positive correlations with greenhouse gas flux changes. (2) Soil CH₄ uptake exhibited highly significant negative correlations with soil temperature, moisture, nitrate nitrogen (NO₃^--N), and water-soluble organic nitrogen (WSON) (R²=0.41-0.58), while N₂O emissions showed significant positive correlations with soil temperature, NO₃^--N, ammonium nitrogen (NH₄⁺-N), and water-soluble carbon/nitrogen components (R²=0.49-0.67; P < 0.05). (3) While enhancing soil fertility (NO₃^--N increased by 13%-18%; organic carbon by 7%-12%), LC and MC treatments resulted in the lowest increases in global warming potential (GWP) (45.94%-80.70%), significantly outperforming HC and CC (P < 0.05). These results demonstrate that light and moderate strip cutting transformation can achieve synergistic optimization between restoring ecological functions in abandoned bamboo forests and mitigating greenhouse gas emissions providing a scientific basis for sustainable management of subtropical bamboo forests.