Abstract: The ecological benefit of forest carbon fixation and oxygen released in Xinyang were evaluated in 2012 based on Xinyang forest resources inventory data and Henan Jigong mountain forest ecological station long-term continuous observation data.The results showed that the total annual amount of carbon sequestration was 3.186 1 million ton, amount of oxygen released was 7.449 8 million ton, value of the ecological effect was 10.795 billion yuan(RMB) . Evaluation of ecological benefit of different forest type showed: benefit of populus tremula was greatest, value of 5.242 billion yuan, then the pinus massoniana forest, value of 2.702 billion yuan, and soft broadleaved forest is smallest, value of 0.093 billion yuan