In the legal norms involving Hainan Free Trade Port at different legal hierarchy，the regulations formulated by Hainan’s local legislature play a particularly important role in connecting the superior legal norms and subordinate legal norms. Therefore，it is necessary to focus on the legal rule system formed by these local regulations，namely，the Hainan Free Trade Port regulations system，and its positive impact on the construction of Hainan Free Trade Port. The construction of Hainan Free Trade Port’s regulations system has promoted the innovation of business environment construction system，key park management system，key industry developing system，ecological environment protection system and social governance system. We should gradually form a Hainan free trade port regulations system that can match high-standard international economic and trade rules. According to the development trend of free trade port，Hainan free trade port regulations system that can realize the digitalization of free trade port should be fully formed in terms of infrastructure，supervision and facilitation. Based on the construction of modern industrial system proposed by Hainan Free Trade Port，we should constantly improve the Hainan Free Trade Port’s regulations system that can meet the requirements of Hainan Free Trade Port’s industrial development.