To comprehensively understand and correctly apply Xi Jinping’s thought of Socialism with Chinese characteristics in the new era,it is necessary to grasp its inner theoretical traits by using the principle of dialectical analysis,and fully understand the dialectical unity of its inheritance and innovation,criticism and constructivism,regularity and purpose,principle and flexibility,nationality and world nature,Party nature and people’s nature. Only by adhering to the principle of dialectical analysis,can we grasp the Xi Jinping’s thought of Socialism with Chinese characteristics in the new era in an allsided way,and use it better to equip our mind and guide our practice.