The invention discloses a lifting primary-cranioplasty device. The lifting primary-cranioplasty device comprises two relatively-movable repairing plates, wherein one ends of the two repairing plates are in contact. The other ends of the repairing plates are connected with the skull through lifting devices. Each lifting device comprises a first hinge leaf connected with the skull, a third hinge leaf connected with the corresponding repairing plate, and a second hinge leaf with the two ends hinged to the first hinge leaf and the third hinge leaf respectively. The lifting primary-cranioplasty device also comprises fixing devices for fixing the repairing plates and the skull into a whole. By means of the cranioplasty device, an operation is simple, safe and short in time; repairing materials can be lifted to a certain degree and unfolded, so that sufficient pressure reduction is guaranteed; after encephaledema recedes, the cranial cavity can be closed, protected and sealed in time, pains and risks caused by secondary cranioplasty are avoided, and the operation cost is saved.