The utility model discloses an overweight field of force shaketalle test adds uninstallation device, the utility model discloses a device is including mold box, reaction frame, loading device, data acquisition device and mechanical locking means, loading device includes load plate, pneumatic cylinder, pneumatic cylinder upper portion pipeline and pressure main(header) way, and the pressure main(header) is equipped with the stabiliser on the road, the data acquisition device includes angular transducer, pressure sensor, displacement sensor, controller and computer, machinery locking means includes mechanical locking pneumatic cylinder, two three -way valves of normal close formula, push rod, lock banking stop, gear and gear groove. The utility model discloses a device can be on existing equipment technical conditions bases, effectively increase the degree of depth of centrifuge shaking table research soil layer, provide important technical support for further studying deep soil body dynamic response characteristic experiment.