As the Communist Party of China marks its 105th anniversary in 2026, one question continues to attract attention: how has a century-old political party with more than 100 million members maintained its vitality and capacity for renewal? Li Junru, former vice president of the Party School of the CPC Central Committee, points to six key factors. Together, he maintains, they help explain how the Party has continued to adapt, evolve, and stay relevant through changing times.