The invention provides a non-contact six-freedom-degree (DOF) displacement measurement device, which comprises: a stationary part, a light source luminous part which comprises a four-way laser output structure that is fixed with the stationary part together and emits beams, and a photoelectric receiving part which is fixed with an object to be measured together and comprises four area-array CCDs,wherein, each CCD respectively receives an one-way light source signal among the light source signals emitted by the four-way laser output structure; when the object to be measured carries out movement of arbitrary DOF, the position of a corresponding light point on the CCD is caused to be changed, and the six-DOF displacement of the object is calculated according to the light point position before and after the change. The non-contact six-DOF displacement measurement device can be used for the high-precision six-DOF micrometric displacement monitoring of objects.