. The existence of budgetary reform in local financial management from traditional budget to performance budget requires DPRD members as executive partners to know and understand performance-based budgeting. This study is intended to investigate and obtain evidence empirically concerning knowledge and understandings of DPRD members on Performance-Based Budgeting and factors influencing them. It also includes the implementation of Performance-Based Budgeting in Bitung city. The study is a qualitative exploratory research. Respondents were chosen by purposive sampling. Data were collected by interviews, observation and documentation. Triangulation was conducted to validate data. This study concludes: (1). As many as 58% DPRD members did not understand the concept of Performance-based budgeting; (2). Educational background and length of tenure do not affect the level of knowledge and understandings of the DPRD members; (3) they often to attend trainings and technical meetings but the results have not been fullest; (4). Legislative and Executive communicate to support implementation; (5). Obstacles found are regulation, group or personal interests, leader commitment, or implementation execution, limited budget and insufficient of elements and indicators.