The invention discloses a calibration device for a force-measuring sensor, which comprises a motor driver, a data acquisition unit, a host computer, a bottom plate, a support, a standard sensor which is qualified in measurement, a force generating and amplifying device, and a force concerting device, wherein the host computer is connected with the motor driver and controls the motor driver, and is also connected with the data acquisition unit and acquires data; the data acquisition unit is respectively connected with the standard sensor and a sensor to be calibrated through a sensor conditioning circuit; the motor driver is connected with the force generating and amplifying device and provides a power driving signal corresponding to the force generated for the force generating and amplifying device; and the support is vertically fixed on the bottom plate and used for fixing and assembling other components. The invention has the advantage of providing the device which can automaticallyexert a continuous force, maintain a stable force and automatically calibrate sensors such as various tension and pressure sensors and partial torque force sensors.