Provided is a door frame assembly that enables a molding portion to be bent with ease and in which end portions of a door frame do not rust due to the entry of raindrops or the like. A second end portion B that follows on a second flange portion of a door frame is located between an inner wall portion of a glass run channel and a portion of a main frame portion that faces the inner wall portion. An engagement portion of the molding portion is partially connected to a third side wall portion at multiple locations along the direction in which a vertical door frame assembly extends.