In contrary to the expectation of which it has a role to increase the transparency of and the responsibility of self-governing, the participatory budgeting even though aggravates perfunctoriness of participation and local conflicts in Korea. The problems are caused not from the institutional vices of participatory budgeting but from others which each part of people, participating in the budgeting process, have a misunderstanding on the participatory budgeting. Under the consideration that the misunderstandings of citizen and local officials are one of main reasons of a derailing of the participatory budgeting, the study aims to examine empirically the gap between the citizen`s understanding on the participatory budgeting and the official`s, focused on Daeduck-ku, Daejeon.