The utility model belongs to the technical field of medical instruments, and provides an implantable infusion pad for an intravenous infusion port, which comprises an infusion pad body and a heat preservation mechanism arranged at the lower part of the infusion pad body, the heat preservation mechanism comprises a placement plate, a heating layer, a protection plate and a power supply, and the infusion pad body is correspondingly arranged at the upper part of the placement plate; wherein a groove is formed in the upper end of the placing plate, the heating layer is arranged in the groove, thep...