A tilt driving mechanism, mounted on an aircraft to control tilting of a power unit of the aircraft, wherein the tilt driving mechanism comprises: a housing, fixedly mounted on the aircraft; a driving mechanism, mounted in the housing; and a mounting seat, flexibly mounted on the housing, the power unit being fixedly mounted on the mounting seat, and the driving mechanism being fixedly connected to the mounting seat, so as to drive the mounting seat to rotate with respect to the housing, wherein the driving mechanism comprises a power source, a first rotation mechanism, and a second rotation mechanism, wherein an output shaft of the power source is connected to the first rotation mechanism, a rotation shaft of the second rotation mechanism is fixedly connected to the mounting seat, and when the output shaft of the power source drives the first rotation mechanism to rotate, the second rotation mechanism and the first rotation mechanism are in a transmission fit; wherein the housing comprises a first shell and a second shell that are detachable and cooperate with each other, a receiving cavity is formed between the first shell and the second shell, and the driving mechanism is received in the receiving cavity, characterized in that two slots are provided on side walls of the receiving cavity and a baffle plate is inserted in the slots, wherein the baffle plate partitions the receiving cavity into a first cavity and a second cavity, wherein the power source is disposed in the first cavity, and the first rotation mechanism and the second rotation mechanism are disposed in the second cavity; and wherein the first rotation mechanism is a worm, and the second rotation mechanism is a worm gear; wherein worm bearings are disposed at both ends of a worm shaft of the worm respectively, a worm gear shaft of the worm gear is the rotation shaft, and worm gear bearings are disposed at both ends of the worm gear shaft respectively; and wherein two first bearing cavities and two second bearing cavities are provided on an inner wall of the second cavity, the worm bearings are disposed in the first bearing cavities, and the worm gear bearings are disposed in the second bearing cavities. a housing, fixedly mounted on the aircraft; a driving mechanism, mounted in the housing; and a mounting seat, flexibly mounted on the housing, the power unit being fixedly mounted on the mounting seat, and the driving mechanism being fixedly connected to the mounting seat, so as to drive the mounting seat to rotate with respect to the housing, wherein the driving mechanism comprises a power source, a first rotation mechanism, and a second rotation mechanism, wherein an output shaft of the power source is connected to the first rotation mechanism, a rotation shaft of the second rotation mechanism is fixedly connected to the mounting seat, and when the output shaft of the power source drives the first rotation mechanism to rotate, the second rotation mechanism and the first rotation mechanism are in a transmission fit; wherein the housing comprises a first shell and a second shell that are detachable and cooperate with each other, a receiving cavity is formed between the first shell and the second shell, and the driving mechanism is received in the receiving cavity, characterized in that two slots are provided on side walls of the receiving cavity and a baffle plate is inserted in the slots, wherein the baffle plate partitions the receiving cavity into a first cavity and a second cavity, wherein the power source is disposed in the first cavity, and the first rotation mechanism and the second rotation mechanism are disposed in the second cavity; and wherein the first rotation mechanism is a worm, and the second rotation mechanism is a worm gear; wherein worm bearings are disposed at both ends of a worm shaft of the worm respectively, a worm gear shaft of the worm gear is the rotation shaft, and worm gear bearings are disposed at both ends of the worm gear shaft respectively; and wherein two first bearing cavities and two second bearing cavities are provided on an inner wall of the second cavity, the worm bearings are disposed in the first bearing cavities, and the worm gear bearings are disposed in the second bearing cavities.