The present disclosure relates to an image processing device and an image processing method capable of reducing a processing amount.A selection unit selects a plurality of reference pictures having mutually-different reference picture types from reference pictures represented by reference picture specifying information included in a reference list based on restriction identification information identifying that the reference list that is a list of reference picture specifying information specifying reference pictures of a current picture is used commonly within the current picture. A predicted image generating unit generates a predicted image of the current picture based on a motion vector of a collocated picture of time different from that of the current picture and a reference picture of a same reference picture type as a reference picture type of the collocated picture among the plurality of reference pictures selected by the selection unit. The present disclosure can be applied to an image processing device.