Since "the Belt and Road" initiative was put forward in 2013, the publishing industry, as an important carrier of "Culture Going Global", has contributed an important force to the inheritance and promotion of Chinese excellent traditional culture and the strengthening of exchanges and mutual learning between Chinese and foreign civilizations. At present, high-quality publishing going global is an important strategy for China's publishing industry to open up to the outside world, and it presents a basic pattern of "internal and external linkage and coordinated promotion" in the national policy system. In this paper, the policy texts of high-quality going out of the publishing industry in the context of "the Belt and Road" initiative are divided into two categories: "endogenous development" and "outward expansion". Taking policy tools and action paths as the analytical dimension, this paper discusses their structural distribution, synergy characteristics, advantages and disadvantages, with a view providing policy optimization suggestions for high-quality going out of the publishing industry.

The study is divided into three parts: selecting 161 samples of bilateral and multilateral documents issued to foreign countries (referred to as "foreign samples") and 20 samples of policies issued by the central government and its functional departments (referred to as "domestic samples"); establishing two types of policy text analysis frameworks for external samples: "Region Effectiveness Level Role Category" and domestic samples: "Policy Tools Role Category"; combining the theories of industrial value chains, revealing the endogenous connection between the two, analyzing the structural synergy characteristics of the existing policy system and its advantages and disadvantages, and then proposing the policy optimization paths.

Research finds that foreign samples and domestic samples have goal consistency, tool complementarity, and mechanism linkage in promoting high-quality going out of the publishing industry. The content and intensity of the former are closely related to factors such as diplomatic relations, cooperation focus, and geography between countries, and focus on the construction of external communication fields and channels, cooperation mechanisms, etc. The latter has the rich hierarchy and diverse content, emphasizing support for internal capacity building, resource integration, and standard guidance in the publishing industry. Overall, the policy system for the publishing industry to go global is shifting from "decentralized implementation" to "coordinated promotion", gradually forming a comprehensive strategic framework through the coupling of domestic and international policy goals, tools, and paths. However, the existing policy system also has certain shortcomings in terms of policy attention, targeted content, balanced regional cooperation, rational use of policy tools, and effective connection between domestic and foreign policies.

Based on the perspective of dual circulation, propose a policy optimization path to enhance the linkage effect between domestic and international markets and resources, and promote the high-quality going out of the publishing industry: improving the systematization of domestic policies and promoting the comprehensive development of the publishing industry; emphasizing the scientificity of foreign policies and assisting in the multi-level communication in the publishing industry; bridging two types of policies and ensuring the high-quality going out of the publishing industry through a three-dimensional approach.