Since the first blue book on the rule of law was published in 2004, the evaluation of the rule of law has become a general subject under discussion to both the government and the people in China. And the administrative law enforcement is the key content of it. Up to now, summarizing the practice of administrative law enforcement evaluation, whether it is "government by law evaluation", "local rule of law evaluation", "rule of law index" at the macro level or the performance evaluation of administrative law enforcement at the micro level, there are more or less defects of focusing on qualitative rather than quantitative, process rather than actual effect, and form rather than quality. China has entered a new era of socialism with Chinese characteristics. Under the requirement of "innovating the way of supervision, enhancing the credibility and execution of the government", the existing evaluation of administrative law enforcement cannot objectively evaluate the effectiveness of the government’s administrative law enforcement. Therefore, the evaluation of administrative law enforcement should also keep pace with the times, and use the Big Data of administrative law enforcement cases to evaluate the administrative law enforcement. Taking the Big Data of environmental law enforcement as an example, introducing the "rebound rate of violations" index can not only objectively evaluate the overall quality of environmental law enforcement, but also analyze the deterrent intensity of different environmental law enforcement measures, and more scientifically and objectively judge the quality of environmental law enforcement in different regions. The "rebound rate of violations" index not only uses the quantitative analysis method, but also can evaluate the effect of administrative law enforcement. Including the "rebound rate of violations" index is the development trend of the evaluation of administrative law enforcement in the era of Big Data.