The enterprises' environmental responsibility is the duty of the enterprises in environmental protection for the society. In this paper, by analyzing the imperfection of legislation in enterprises' environmental responsibility, it is pointed out that legislation perfection should be done through affirming the enterprises' environmental responsibility, completing the resource utilization legislation and paying attention to the construction of interrelated legal system. So, it can make the enterprises do some measures actively to use the resources properly and put the cleaner production into practice.