The utility model discloses a device for static and dynamic deformation measurement, which comprises a top plate arranged on a bottom plate through a plurality of springs, and a guide rod is vertically arranged on the top plate; a screw is arranged at the top of the spring, penetrates through the top plate and is fixed by a nut at the top. The screw rod at the top of the spring is connected with the top plate, the balance of the top plate is adjusted by the nut, the tightness of the spring can be adjusted by adjusting the nut, and the initial position of the sensor pointer is controlled to adapt to positive and negative measuring range required during measurement, so that the measurement has higher accuracy. A plurality of defects, unstable factors and safety risks of scaffold erection areeliminated; the system is suitable for various bridge environments. The device is simple in structure and convenient to use, can obviously improve the working efficiency of measurement and reduce theengineering cost in the actual application of static and dynamic deformation measurement work in a load test, is suitable for sensors of different sizes, can be popularized to deformation measurementwork in other fields of non-bridges, and has very high practicability and wide applicability.