The college students' cervical vertebra sub-health condition is gaining attention. This comprehensive investigation of research volunteers' cervical health combined survey questionnaire and medical examination. Results show: 1) 31.37% of volunteers have cervicodynia symptom; 2) cervicodynia can affect volunteers' reading, attention, and cause headache; 39.22%encounter mild loss of cervical function; 3) cervical morphology underlying posture may influence traction pillow design, combined with reasonable pillow height; 4) cervical functional strength of 90% of volunteers is good and muscle strength test appears normal; 5) cervical curve depth of 83.87% of female and 70% of male volunteers is below normal range and cervical curves tend to become straight. Volunteers were divided into three groups: healthy, between healthy and unhealthy, unhealthy, to provide theory and data reference for body shape classification in future traction pillow design.