The utility model discloses force cell sensor technical field specifically says to disclose a large -tonnage force cell sensor. The structure that constitutes this sensor includes and is surveyed the pelvis mechanism that structure lower part shape corresponds, set up the pressing bearing rubber plate who is full of the pelvis cavity in this pelvis mechanism be provided with the pressure sensing mechanism that is connected with the indication mechanism of weighing on the lateral wall of pelvis mechanism. This large -tonnage force cell sensor not only have simple structure, low in manufacturing cost characteristics, can realize civilian large -scale object dynamometric popularize to use of weighing, but also can carry out real -time detection to the atress of measured object.