The existence of organizations is very important in the administration of elections. Setting various organizational dimensions adequately, is an important part of efforts to achieve organizational goals. Indonesian Law No.7 of 2017 concerning Elections, which replaces the three laws related to the election before was a dynamic effort towards an increasingly quality election. In this law, it is stipulated that the KPU is one of the organizations that organizes elections. The existence of various KPU organizational dimensions, both structural and contextual, in the law is one of the determinant factors for the effectiveness of achieving the KPU's objectives as an organization. With normative juridical research methods and library studies, this study concludes that Indonesian Law No. 7 of 2017 has included the arrangement of organizational dimensions, both structural and contextual dimensions. The structural dimensions include formalization, specialization, centralization, hierarchy of authority, standardization, complexity, professionalism, while the contextual dimensions include size, technology, goals, strategies and organizational culture and organizational environment. There are four dimensions of the organization that are fully regulated in the law, namely formalization, specialization, standardization, organization environment, organizational technology. The other dimensions are centralized, complexity, professionalism, size, environment and goals, strategies and organizational culture are not adequately regulated. There are several inconsistencies and obscurity in the arrangement, so this law needs to be revised including regarding the nature of the institution, the authority to make regulations, the minimum education requirements and the age of the election organizer.