The main objective of this paper is to discuss public policy formulation process of the development planning of irrigation networks and determine the factors that influence it, especially irrigation network development planning in the Office of Water Resources Management. The population in this study is the entire board Combined water user associations (Gabungan Petani Pemakai Air). This type of research is descriptive qualitative data collection techniques through documents, questionnaires, and informants. The data were then analyzed using qualitative descriptive analysis. Samples were made respondents in this study were 30 respondents drawn at random sampling. The collected data was analyzed using frequency tables and percentages. The results showed that the analysis of public policy formulation process of the irrigation network development planning in the Office of Water Resources Management Sidenreng Rappang Regency is categorized very well with the percentage of 82.99% in the stage of planning agenda, and policy formulation. Factors that influence the process of public policy towards irrigation network development planning is the pressure from the outside as much as 29.31%, the influence of the personal nature of the percentage of 40.52% and the influence of the past with the percentage of the state as much as 77.59% inferred percentage ie 44.18% with Good Enough category.

Keywords: Public Policy Formulation and Process Development Planning.