The changes to the structure and functioning of terrestrial ecosystems due to climatic warming have been reported worldwide. Litter decomposition plays a key role in various processes, including soil biochemical cycles, organic formation, stabilization, and carbon budget; yet, it has been strongly affected by global warming. Soil enzyme activity serves as a key indicator for soil fertility in terrestrial ecosystems, and has been affected by climate warming. Consequently, it is important to elucidate the effects of the interaction among decomposition, climate warming to soil enzyme activity. Over past 20 years, various studies have shown that litter type influences litter decomposition. Most studies focused on evaluating litter decomposition rate and the factors that influence it, particularly climate warming. However, only short-term warming was assessed in many of these studies, normally, just one or more growth seasons, or one year. Therefore, it is indispensable to taking longer-time warming. The present study investigated how combined warming and litter decomposition influenced surface soil enzyme activity in a dark coniferous forest of eastern Gongga Mountain, southeast margin of Qinhai-Tibet plateau. Open top chambers (OTCs) and heat cable systems were applied to simulate warming, two litter types(A: 75%needles litter + 25%foliar litter; and B: 55%needles litter + 45%foliar litter) decomposed from May 2009 to May 2012. The results showed that, compared to the control, air and soil temperature increased by 2.84 ℃ and 1.83 ℃, respectively, in the warming plots. Compared to the control, air moisture and soil water content decreased by 5.27% and 1.55%, respectively, in warming plots. These results show that the OTC-cable system influenced micro-environment of decomposition. A lower decomposition rate was detected in leaf litter with high needle content, with the rate increasing by 10% in the warming plots. Warming also reduced catalase and urease activity, but increased polyphenol oxidase activity. There was a 15% increase in the activity of these three soil enzymes in leaf litter with low needle content. Totally, soil catalase and polyphenol oxidase activity increased, while soil urease activity declined in deeper soil, the extent were different among temperatures and litter types. In addition, when soil moisture was low, soil enzyme activity was more dependent on soil temperature than soil moisture. Furthermore, there were no significant effects on the soil surface acid-base property from warming and the decomposition of different litter types. In conclusion, our results indicate that soil surface enzyme activity in the Abies fabri forests of eastern Gongga Mountain varied with respect to enzyme species, soil depth, warming periods, and soil water content.