The themes in the report of the 20th National Congress of the CommunistParty of China profoundly shows the inherent requirements of continuing to move forward towards the Second Centenary Goal with spirits such as upholding fundamentalprinciples and breaking new ground. The report also gives an important position totheidea of upholding fundamental principles and breaking new ground which is includedin the worldview and methodology of Xi Jinping Thought on Socialism with Chinese Characteristics in a New Era. In the new journey to advance the rejuvenationofthe Chinese nation on all fronts through a Chinese path to modernization，we need to examine the connotative values of upholding fundamental principles and breaking neground.From the historical perspective，this spirit holds a unique advantage in exceling the Chinese path to modernization.From the perspective of practice，it is the practical path for the Communist Party of China to promote Chinese path to modernization.From the spiritual perspective，it is the political character safeguarding the Communist Party of China to follow the Chinese path to modernization.