Abstract: Since the reform and openingup, China has made remarkable achievements in economic development. However, the rapid economic growth resulted in the environmental 
destruction to a certain degree. Thus, the government has taken some corresponding measures in order to change this situation. Then the emission permits gradually aroused 
people's attention, and has consequently grown in prominence as an important policy for environmental pollution control. The proper evaluation of its implementation effect is  not only conducive to the policy implementation itself, but also instructive to the development of similar policies in other regions. Based on the panel data of 30 regions in  China between 2004 and 2014, this paper established the measurement model of environmental technology progress, and discussed the effects of emission permits by employing the most internationally popular method (namely, DifferenceinDifference, DID) which can quantitatively evaluate policy implementation. In this study, we found that the  generation of emission permits did not bring about a dramatical enhancement on China's provincial environmental technology progress immediately. Nevertheless, after 2 years, the  implementation of emission permits did limit the pollution emission to a certain extent and presented a positive affect on pollution control. Thus, we can conclude that the establishment of emission permits can actually improve environmental technology progress and is conducive to the healthy and sustainable development of China's economy in the 
long run. In addition, policy recommendations were made at the end of this paper.
Key words：emission permits; environmental technology progress; superefficiency SBM model; differenceindifference