In order to detect on the ground the dynamic disturbance forces produced by the operation of vibration sources in large aerospace equipment, a load-sharing measuring platform is presented that takes into account inertial forces and background noise. The load-sharing column ensures a larger mounting area and higher load capacity in the fundamental structure of the measuring platform. For measurement precision compensation, extra sensors are installed as well. A novel dynamic calibration and measurement principle that takes into account platform inertial forces and ambient noise is then developed based on the conventional theory. Finally, the load-sharing measuring platform’s prototype is machined, and a verification system is constructed. Using comparison tests, it is possible to confirm the viability and superiority of the presented principle. Compared to the traditional average dynamic measurement accuracy of 15.54 %, the new measurement theory has a higher accuracy of 5.02 %. This offers technical assistance to guarantee the reliable operation of highly precise aerospace equipment.