Present disclose provides the device and method for measuring cervical vertebra movement. Device includes sensor unit, calculation part, storage unit and judging unit. Sensor unit includes at least one transmittance section and an at least receiving unit. Any driving section and receiving unit are along user head stationary phase for the casing of other users. The receiving portion that transmission unit sends detectable signal receives them. Operational part calculate, based on detection signal, the distance between distance changes transmitting and the receives a part of users head in front and back is mobile. The variation of relationship and the head of movement angle user between storage unit memory map assignments instruction distance. Unit is inquired mapping table and is converted into determining the head of movement angle user based on distance. Present apparatus structure is simple, easy to operate feasible.
