Non-contact motion tracking based on image and vision is currently an active research field in photomechanics, and it has been widely used in scientific research and engineering measurement. This paper introduces a long-range multi-point 3D real-time motion measuring instrument based on the principle of stereo vision. The system is composed of two independently working stations. Each station has complete high-speed image acquisition, distance measurement, attitude perception, motion control and data processing function. To realize remote measurement, the stations communicate and exchange data through network cables or wireless transmission to form a cooperative measurement mode of “main station + secondary station”. In the three-dimensional calculation, the automatic calibration of the dual-station camera is realized by using scene features, and the stereo matching and temporal tracking are performed based on the efficient digital image correlation principles, realizing the real-time measurement of multi-point three-dimensional motion. The accuracy of the measurement system is verified by the indoor rigid body translation experiment; the feasibility of the measurement device in the long-distance large field of view measurement is proved through the measurement of the actual wind turbine blade movement trajectory.