Ideological risk refers to the possibility of influencing the healthy development of mainstream, which may result in the loss and destruction of national ideological security, and the recognition and judgment of this possibility. The CPC has continuously explored the laws of ideological construction during its 100-year history, successfully resisting various risks and challenges in the ideological field, and has accumulated fruitful historical experience. The CPC persists in combining the basic principles of Marxism with China’s specific reality and strengthens the party’s ideological construction to enhance the ability and level of resisting ideological risks. The CPC safeguards the fundamental interests of the people and constantly consolidates the mass foundation of the CPC. Through ideological education, the party has consolidated the common ideological foundation for the unity and struggle of all people. Based on the valuable experience of the CPC in resisting ideological risk, it is a must to adhere to the guiding position of Marxism in the ideological field to resist the ideological risk in the New Era, insist on arming the mind with Xi Jinping Thought on Socialism with Chinese Characteristics for a New Era, and keep on satisfying people’s sense of gaining to consolidate the class foundation of Marxist ideology.