The invention discloses an intelligent antitheft door. The door structurally comprises a buffer block, a door top, a door body, a door frame and an intelligent lock, wherein the buffer block is located under the door top, the door body is in hinge connection with the left end of an inner frame of the door frame, the intelligent lock is arranged in the middle of the right end of the door body in awelded mode, the door body is located under the door top, and the intelligent lock comprises an identification module, a door handle rotation connecting mechanism, a fireproof unlocking mechanism anda shell. According to the intelligent antitheft door, the structure of the device is improved, a slow-speed return structure is arranged at a joint of a door handle, so that the return speed of the door handle is slowed down, after the door handle is pulled and pressed to open the door, when the door handle is returned, the phenomena that the door handle quickly rebounds due to the action of torsion springs, and hard collision and damage at the joint of the door handle are caused is avoided; and meanwhile, when a fire occurs, internal elements of the electronic lock are damaged and out of service due to high temperature, a standby unlocking mechanism can be driven to open the door through thermal expansion, so that the phenomenon that the electronic lock is out of service and cannot be used when the the fire occurs is effectively avoided.