The invention relates to an interrupted rail weighbridge detection device. The interrupted rail weighbridge detection device comprises a counter force support group, a first force boosting device group, a first pressure sensor group, a second force boosting device group, a second pressure sensor group and a controller unit which is electrically connected with first electric control valve units, first pressure sensors, second electric control valve units and second pressure sensors respectively. The interrupted rail weighbridge detection device of the invention can replace a traditional special inspection vehicle so as to perform various kinds of modes of detection on rail weighbridges. The interrupted rail weighbridge detection device has the advantages of convenience and quickness, and can assist in saving detection cost.