A wet type image forming apparatus has a primary transfer unit that transfers to an intermediate transfer body a coloring particle image formed on the surface of an image bearing member by using liquid developer. A secondary transfer unit transfers onto a recording medium the coloring particle image transferred to the intermediate transfer body. A cleaning unit recovers liquid developer remaining on the intermediate transfer body after transfer by the second transfer unit. An aggregation promoting agent addition unit is disposed on a downstream side of the secondary transfer unit in a direction of rotation of the intermediate transfer body and on an upstream side of the cleaning unit in a direction of rotation of the intermediate transfer body and adds to the surface of the intermediate transfer body an aggregation promoting agent that promotes aggregation of resin contained in the liquid developer.