Electric vehicle (EV) is considered as the most appropriate green technology to be applied in the automotive field for reducing energy use and CO2 emissions. Therefore, many countries encourage the use of EV, such as Indonesia. Remembering that EV implementation in Indonesia is a new thing and based on experience from several countries that the EV diffusion process is relatively slow, it is important to understand user acceptance on EV in Indonesia, including the factors that influence such acceptance. This study aims to develop a conceptual model that can be used to investigate the complex dynamic relationships among factors and linkages of government policies affecting the EV adoption in Indonesia. The conceptual model was developed using causal loop diagrams to capture the EV adoption process. Furthermore, a system diagram was developed to illustrate EV adoption problems comprehensively. This study results can be used as a basis for developing strategies and scenarios to increase EV adoption in Indonesia.