Improving the country's cultural soft power is related to the realization of the Two Centenary Goals and the Chinese dream of the great rejuvenation of the Chinese nation. General Secretary Xi Jinping has emphasized that to do a good job of propaganda and ideological work in the new situation, we must consciously undertake the mission of raising the flag, rallying the people's hearts, fostering new people, revitalizing the culture and presenting an image. To present an image means to promote the building of international communication capacity, tell a good Chinese story, disseminate a good Chinese voice, present a true, three-dimensional and comprehensive China to the world, and improve the country's cultural soft power and the influence of Chinese culture. As we know, the enhancement of cultural soft power cannot be separated from the expansion of the dissemination and radiation power of culture, and the key to the expansion of the dissemination and radiation power lies in the enhancement of international communication capacity, which makes international communication capacity an important means and an effective tool to enhance cultural soft power. Enhancing international communication capacity has become a key part of enhancing cultural soft power, and international communication capacity has assumed the function of a “strategic hub” for the transformation of cultural resources and has become an important way to enhance cultural soft power.

Content development is the foundation of international communication capacity-building. The reason why communication content attracts world attention is that it contains not only information, but also cultural values and ethical norms, and the attraction they generate. Therefore, international communication content should be categorized and screened to find persuasive international communication content. Persuasive international communication content is the key to enhancing cultural soft power. Currently, the production of content for international communication capacity building mainly includes global cultural supply and value resonance, with global cultural supply mainly referring to the supply of attractive ideas and popular culture, and value resonance mainly referring to the supply of persuasive values and ideologies.

Attractive global culture and persuasive values can be better disseminated and can elicit emotional resonance and value resonance from the audience. As far as cultural soft power is concerned, cultural resources are its foundation, but not all cultures can be transformed into soft power, and only those cultures with actual survival creativity constitute cultural soft power. It can be seen that the key and core of the enhancement of cultural soft power lies in the production and innovation of cultural content, i.e. cultural content must be persuasive. Content production in international communication capacity building includes the production and innovation of cultural soft power, thus providing content options for the enhancement of cultural soft power. At present, in China's international communication capacity building, emphasis should be placed on highlighting the construction of cultural content, combining the basic principles of Marxism with the excellent traditional Chinese culture, consolidating the subjectivity of Chinese culture, and enhancing cultural soft power.

The study of cultural soft power cannot be separated from the discussion of communication channels, and the transformation of the soft power of cultural resources requires channel support. Cultural soft power originates from cultural resources, which are disseminated through various channels so as to form the cultural identity of the audience, and then generate cultural practices and realize attraction, inspiration and influence. As Joseph Nye pointed out, in the information age, soft power depends not only on the universality of cultures and ideas, but also on the communication channels a country possesses, as it is able to have influence on how to interpret issues. Especially in the current information age, the influence, attraction and appeal of culture depend to a large extent on international communication capabilities. It can be seen that the degree of acceptance of culture is closely related to the degree of development of communication channels.

At present, countries around the world are facing the challenge of channels, and Western countries led by the United States are using national security and ideology as pretexts to block their international communication channels and curb the rise of soft power in other countries. It can be said that channel building has become a decisive factor in enhancing cultural soft power in the face of the increasing complexity of international public opinion. International communication capacity building fits the need for channels to enhance cultural soft power. As far as international communication capacity building is concerned, channels are the core of its elements. The construction of good communication channels is an important symbol of international communication capacity building, which helps to break the challenges of international communication channels and ensure the normal progress of international communication. International communication capacity is the ability to communicate globally, and communication capacity can be realized by choosing the most appropriate channels and effective channels. The current channel construction of international communication is expanding traditional communication channels, actively exploring international traditional communication channels, and comprehensively utilizing visualization, intelligent communication products and overseas social platform channels to provide alternative channels for the transformation of cultural resources into cultural soft power. Thus, the enhancement of cultural soft power cannot be separated from the support of international communication channels, and the building of international communication capacity provides channel support for the enhancement of cultural soft power.

Platforms connect products and users, are the intermediate link between products and users, and are the pivotal link in international communication, as well as the key link in promoting international communication capacity building. In the current global information era, along with technological progress, international communication is showing new features of platformization - from individual content “going out” to communication platforms “going out”, which relies on the operation of communication platforms. The core of the success of international communication in the era of platformization lies in the control of communication platforms. Whether it is a traditional cultural platform that extends traditional cultural communication, the coordination of new digital platforms based on new technologies, or the effective collaboration of communication platforms in other countries around the world, all of these will be key factors in determining the reach, acceptance and impact of cultural content communication.

At present, platforms have become a new strategic consciousness, and user thinking, or “finding people with information”, has become a new growth point in international communication capacity-building, while also providing an important venue for the expression, debate and dissemination of values. However, the current international communication platforms are at a stage of monopolization and confrontation, with Western countries, led by the United States, monopolizing the communication platforms by virtue of their technological advantages and shaping the so-called “hostile” communication platforms by virtue of their political discourse advantages, resulting in the lack of platforms for cultural communication in other countries. The construction of platforms is an important part of international communication capacity building, providing an important way to break the monopoly of platforms and platform confrontation in the West, and an important place for the expression, debate and dissemination of cultural values. It can be seen that the enhancement of cultural soft power cannot be separated from the support of international communication platforms, and international communication capacity building provides an important venue for the enhancement of cultural soft power.