Before the national level legislature has issued the national level social credit law，the local legislature has begun to carry out relevant credit legislation activities. Through the review and analysis of the local credit legislation，it is found that the legislative system is not coherence，the credit information is generalized，and the legal system is not unified. Part of the reason for these problems is that local legislators lack of unified superior law regulation in credit legislation activities. Therefore，it is necessary to introduce a national level social credit law. The national level of social credit law should be unified design of relevant systems and rules to regulate and integrate local credit legislation activities，so as to enhance the coherence of the whole social credit legal system and promote the coordinated development of social credit legal system.