先进性是马克思主义政党的根本特征,也是马克思主义政党的生命所系、力量所在。党的先进性建设是关系马克思主义政党生存发展的根本性问题,是马克思主义政党自身建设的根本任务。因此,从理论上搞清楚什么是党的先进性、什么是共产党员的先进性并汲取苏共丧失先进性的教训尤为必要。 The advanced nature is the fundamental characteristic of Marxist political parties and the place and strength of the Marxist political parties. The construction of the advanced nature of the party is a fundamental issue that relates to the survival and development of the Marxist parties and is the fundamental task of the self-construction of the Marxist parties. Therefore, it is especially necessary to find out theoretically what is the advanced nature of the party, what is the advanced nature of the party members and the lessons learned from the advanced nature of the Soviet Communist Party.