The invention discloses a cervical traction device which comprises a motor base, a seat body arranged on the motor base and capable of sliding forwards and backwards, an upper forehead downwards-pressing device fixedly arranged on the seat body, and a neck support device, wherein the neck support device is positioned behind the upper forehead downwards-pressing device and comprises a neck support part and an airbag positioned below the neck support part; the airbag at least comprises a bearing airbag and two wrapping airbags positioned on a left side and a right side of the bearing airbag; after the airbag is inflated, the wrapping airbags on the two sides are higher than the bearing airbag. The cervical traction device is simple in structure and convenient to operate; by arranging the airbags, cervical vertebra can be pulled and stretched in a state of keeping physiological curvature, thereby better facilitating restoration of the physiological curvature of the cervical vertebra of a patient.