A vehicular door structure is provided with a door inner panel provided with a work hole, a sealing sheet for closing up the work hole, a sealant application part provided to the door inner panel, and an attachment member holding a linear member and attached to the door inner panel, the attachment member being arranged in the middle of the extending direction of the sealant application part, and a sealant, which bonds the sealing sheet to the door inner panel, being continuously applied over the sealant application part and the attachment member.