This study aims to verify the relationship between policy literacy and attitudes toward the government innovation initiative known as Government 3.0. Also, this study hypothesizes that the relationship between policy literacy and policy attitude can be moderated by cognitive subject and analyzed according to the type of cognitive subject involved. The multiple regression analysis based on the results of a survey that targeted 2,039 civil servants and ordinary citizens was utilized to verify the relationship. According to our research results, a high level of policy literacy about government 3.0 has a positive effect on policy support, and it is statistically significant. The effect of moderating variables, however, reveals that the impact of policy literacy on policy support varies depending on who the cognitive subject is. In addition, when the policy target groups are divided into civil servants and citizens, unlike the case of civil servants, a higher level of policy literacy on Government 3.0 in citizens does not necessarily lead to a higher level of policy support. The implication of this study is that unlike general misconception government officers do not groundlessly oppose government innovation programs. If there is enough information about the innovation, they will strongly support those changes. Also, in the case of citizens, rather than fancy slogans, it is necessary to guarantee transparent information and citizen participation. That can help ensure a positive correlation between policy literacy and policy support.