Abstract: During its century-long struggle， the Communist Party of China （CPC） has accumulated valuable historical experience in handling relations among political parties. These experiences mainly include： always adhering to Marxist theory of political parties as the theoretical foundation， leading the development of party relations through theoretical innovation， taking the Party's leadership as the core guarantee for the stability of party relations， regarding institutional building as the key path for the standardization of party relations， and taking cooperation and harmony as the value orientation for building a healthy party relationship. These experiences do not only demonstrate the outstanding political wisdom of the Communist Party of China as a Marxist party， but also provide important theoretical support and practical guidance for adhering to and developing the socialist political party system with Chinese characteristics in the new era.