An adaptive illuminating headlight (D1, D2, D3) for use in a vehicle, J Z comprising: a stator structure; a rotor structure configured to rotate relative to the stator structure and having a carrying surface; a driver arranged between the stator structure and the rotor structure to drive the rotor structure; a light emitting unit arranged on the carrying surface to emit an illumination light beam; an optical assembly configured to allow the illumination light beam to project outwardly so as to produce an illumination pattern; and a control unit configured to control the driver to operate according to a posture change of a vehicle body, such that the light emitting unit is driven by the rotor structure to rotate through a predetermined angle; characterized in that the rotor structure includes a base portion and a housing portion extending from the base portion, the carrying surface is located on the base portion, and the base portion and the housing portion jointly define an accommodating space; the stator structure is located in the accommodating space and includes an end portion and a shaft portion extending from the end portion, and the shaft portion is closer to the base portion than the end portion; wherein the driver includes a coil structure, a magnetic body, and at least one bearing, the coil structure and the magnetic body are disposed between the shaft portion and the housing portion, and the at least one bearing is surroundingly disposed on the shaft portion and spaced apart from the coil structure; wherein the control unit includes a control printed circuit board located in the accommodating space that is closed by a back cover. a stator structure; a rotor structure configured to rotate relative to the stator structure and having a carrying surface; a driver arranged between the stator structure and the rotor structure to drive the rotor structure; a light emitting unit arranged on the carrying surface to emit an illumination light beam; an optical assembly configured to allow the illumination light beam to project outwardly so as to produce an illumination pattern; and a control unit configured to control the driver to operate according to a posture change of a vehicle body, such that the light emitting unit is driven by the rotor structure to rotate through a predetermined angle; characterized in that the rotor structure includes a base portion and a housing portion extending from the base portion, the carrying surface is located on the base portion, and the base portion and the housing portion jointly define an accommodating space; the stator structure is located in the accommodating space and includes an end portion and a shaft portion extending from the end portion, and the shaft portion is closer to the base portion than the end portion; wherein the driver includes a coil structure, a magnetic body, and at least one bearing, the coil structure and the magnetic body are disposed between the shaft portion and the housing portion, and the at least one bearing is surroundingly disposed on the shaft portion and spaced apart from the coil structure; wherein the control unit includes a control printed circuit board located in the accommodating space that is closed by a back cover.