党的组织基础与时俱进是马克思主义党建学说重要原理。江泽民同志根据我国经济发展和社会进步的实际 ,提出了不断增强党的阶级基础和扩大党的群众基础的崭新理论。这一理论主要包括工人阶级扩大论、新社会阶层论、新社会阶层优秀分子入党论和党的先进性标准论。实践这一新理论 ,就为不断提高党战斗力凝聚力影响力提供了根本保证 The Party’s organizational foundation and keeping pace with the times are the important principles of Marxist party building theory. Based on the actual situation of China’s economic development and social progress, Comrade Jiang Zemin put forward a brand-new theory of continuously enhancing the party’s class foundation and expanding the party’s mass foundation. This theory mainly includes the theory of expanding the working class, the theory of a new social stratum, the theory of joining the party of a new social stratum, and the standard of the advanced nature of the Party. To practice this new theory provides the fundamental guarantee for continuously improving the cohesive influence of the party’s combat effectiveness