Abstract: It is generally assumed that the organizational power of a primary party organization is equivalent to its organizational capacity. However, this is not true. The organizational power of a primary party organization includes not only its organizational capacity in structure, but also its governance capacity in function, i.e., the resultant force formed by the "substitution rate" among organizational elements. The former is a kind of hard power influenced by organizational density, while the latter a kind of soft power influenced by functional density of the organization. The measures of organizational density include organizational coverage, job coverage and institution coverage, while the measures of functional density include functional coverage and functional substitution rate. Therefore, under the framework of organizational density-functional density, two dimensions, five major systems and dozens of basic items and specific indicators under them constitute the evaluation system of the organizational power of a primary party organization. In spite of its strong theoretical and practical value, this evaluation system has certain limits in guiding primary party construction and social governance. If we blindly emphasize the enhancement of the organizational density and functional density of a primary party organization, it will easily lead to the "involution" of primary governance structure and function.

Key words: organizational power, governance capability, organizational density, functional density, evaluation system