Environmentally extended input-output table (EEIOT), a balanced matrix of industrial commodity and environmental resources, is widely used to evaluate environmental policy impacts. However, the existing EEIOTs contain energy consumption and pollution emission but neglect emission abatement cost and benefit. In this study, a novel Chinese emission abatement sector extended input-output table (EAS-IOT) is developed through introducing abatement cost, emission charge and abatement benefit into the conventional input-output table. Furthermore, this new EAS-IOT is applied to estimate the environmental efficiency and assess the effects of environmental policies on economy and environment. Results show that the new framework of EAS-IOT has advantage on solving the problem of biased efficiency estimation related to the conventional input-output table.