Xi Jinping s comprehensive theory on security consists of his insights into China s overall national security, Asia s common security, and the global universal security as well as the relationship among themThis universal security theory is an innovative landmark of the security thoughts in the human historyIt lays the basic guarantee and value foundation for the construction of a community of a shared future for mankindThe theory is a crystallization of critical inheritance and creative development of all human civilizations, including Marxism, traditional Chinese culture,the culture of modern Chinese revolution and the culture of socialist constructionRejecting and surpassing the dominant Western zerozum view of security, Xis theory of universal security enriches the grand theory on the construction of a community of a shared future for mankindIt offers important guidance for mankind in the ongoing effort to forge ahead for peace and prosperity