In order to optimize soil moisture management and reduce greenhouse gas emissions in facility farmland，the response of soil greenhouse gas(CO₂，N2O，CH4)fluxes to soil moisture status of tomato soil with different drip irrigation methods(surface drip irrigation，subsurface drip irrigation，alternating drip irrigation，denoted as DI，SDI，ADI)was studied by using field control experiments. The results indicated that:(1)There were significant differences in the cumulative flux of soil greenhouse gases under different drip irrigation water supply methods. Specifically，the cumulative soil CO₂ emissions resulting from SDI and ADI increased by 33.49% and 46.77%，respectively，in comparison with DI(P<0.05). Furthermore，the cumulative soil N2O emissions of SDI increased by 123.76%(P<0.05)，compared with DI. The cumulative soil CH4 flux of DI and SDI exhibited absorption，and the cumulative soil CH4 uptake of SDI increased by 26.02%，compared with DI(P<0.05)，while the cumulative soil CH4 flux of ADI demonstrated emission. The global warming potential of SDI(219.42 g CO₂-eq·m-2)and ADI(193.94 CO₂-eq·m-2)were significantly higher than that of DI(133.86 g CO₂-eq·m-2).(2)The distribution of soil moisture caused by different drip irrigation water supply methods was different. The soil moisture content of the 0-20 cm soil layer of ADI exhibited significant fluctuations during the soil moisture monitoring period，and the average soil moisture content of the 10–20 cm soil layer(23.28%)was notably lower than that of DI(27.47%)and SDI(26.88%)(P<0.05). In contrast，the soil moisture content of the 0–20 cm soil layer of SDI exhibited minimal fluctuations during the soil moisture monitoring period，and the average soil moisture content of the 0-10 cm soil layer(20.53%)was significantly lower than that of DI(23.74%)(P<0.05).(3)The implementation of distinct drip irrigation water supply methods resulted in notable variations in soil porosity，urease activity and plant growth within the tomato root zone. Specifically，the 0-10 cm soil porosity of SDI and ADI exhibited an increase of 11.74% and 10.06%(P<0.05)，respectively，compared with DI. Additionally，the porosity of the 10–20 cm soil increased by 33.53% and 20.40%(P<0.05)，respectively，under SDI and ADI compared with DI. Furthermore，the soil urease activity of SDI increased by 44.64%(P<0.05)compared with DI. ADI and SDI exhibited a 60.68% and 20.87%(P<0.05)increase in root activity compared to DI，respectively. A comprehensive analysis revealed that distinct drip irrigation water supply methods resulted in disparate soil moisture distribution and soil porosity patterns. Furthermore，soil moisture uniformity and soil porosity exhibited a direct influence on the cumulative flux of soil greenhouse gases. Additionally，these factors could exert an indirect effect on the alterations in soil greenhouse gas cumulative flux by modulating root activity，soil urease activity，and plant dry matter weight. The findings of this study could offer a valuable reference point for the optimization of the water supply mechanism of drip irrigation systems and related agronomic measures for facilities，with the ultimate objective of reducing greenhouse emissions.