Nitrous oxide (N_2O) is an important greenhouse gas that causes global warming. Expounding the dynamics of N_2O emissions from soil tropical forests and its regulatory mechanism is an important part of global change and international climate negotiations. This study aimed to understand the response of temporal dynamics of soil N_2O to secondary succession in the tropical forests. The static chamber-gas chromatograph method was applied to explore the relationship of soil N_2O emissions and soil temperature, moisture, and soil physiochemical properties in three secondary succession stages (i.e., Mallotus paniculatus community, Mellettia leptobotrya community , Syzygium oblatum community) of Xishuangbanna tropical forests. The results were: (1) Soil N_2O emissions varied significantly in three succession stages (P<0.05). The order was ranked as S. oblatum community (462.4 mug·m~(-2)·h~(-1))>M. acuminatan community (378.93 mug·m~(-2)·h~(-1))>M. paniculatus community (310.68 mug·m~(-2)·h~(-1)). (2) The N_2O flux had similarity in monthly variation in three succession stages, with the highest values observed in June, and lower ones in December. And (3) the temporal variation in soil N_2O was positively affected by soil easily oxidized organic carbon, hydrolyzable nitrogen, NO_3~--N and NH_4~+-N. Whereas, the dynamics of soil N_2O emissions were negatively correlated with soil bulk density and pH value. We can conclude that soil N_2O emissions can sensitively response to the community succession in Xishuangbanna tropical forests. The variation in soil N_2O emissions is attributed to the changes of the soil factors (e.g., temperature, moisture, easily oxidized carbon, hydrolyzable nitrogen, and nitrate and ammonium nitrogen) in different succession stages of Xishuangbanna tropical forests.