Abstract: Through incubation tests in laboratory, the mineralization of soil organic carbon(SOC) and enzyme activities of different functional areas were observed. Results showed that enzyme activities were significantly different, urease activity: park＞school＞residence＞industry＞road; phosphatase activity: park＞industry＞school＞residence＞road; invertase activity: residence＞park＞industry＞road＞school; But the dynamic patterns of SOC mineralization from different functional areas were similarly, the rate of SOC mineralization decreased quickly at the beginning, and then decreased slowly during the middle incubation time, and keep relatively constant during the later incubation time, and fitted to logarithmic equation with incubation time. Statistic analysis results showed that mineralization rate of SOC were significantly correlated with SOC, water soluble organic carbon(WSOC) and microbial biomass carbon(MBC), the coefficient is 0.850、 0.689、0.485 respectively. Soil enzyme had no direct relationship with SOC mineralization, but the correlation coefficient between microbial biomass carbon with urease and invertase were 0.606 and 0.642, thus have indirect effects on soil organic carbon mineralization.