Directed against the problems of complicated structure and very expensive etc existed in the real-time measurement instruments for the force and the motion of drill string at drilling，a conflict analysis was carried out on the forecasting vibration failure device of drill string according to TRIZ innovation theory. The innovation design has been carried out concretely on the acting motion component and valve pole by using the principles of conflict matrix and invention in the TRIZ theory. The structure of the forecasting vibration failure device of drill string is simple and reliable and it has good application value