This paper presents a multidimensional disturbance measurement platform based on a sensor array distribution to measure the multidimensional disturbance forces of heavy equipment. Based on a piezoelectric sensor， the platform adopts the vibration measuring strategy of a redundant array， which meets the measurement requirements of large loads with a high stiffness， and avoids the losses of measurement accuracy associated with structural coupling. In order to overcome the redundant measurement errors caused by array measurements， the measurement accuracy is optimized based on the generalized inverse method presented in this paper. Sensors in various positions are used as measuring units for the different vibration sources. A linear decoupling algorithm， using a full regression model， is used to obtain a more accurate expression of the three-dimensional force. This method avoids the systematic error introduced by redundant measurements and reduces the influence on the measurement results of the platform from vibration sources with different mechanical characteristics. Finally， the prototype system of the arrayed multidimensional disturbance force measuring platform was built， and the feasibility of the platform was verified by experiments. Experimental results showed that the system can guarantee a high load capacity and stiffness （the fundamental frequency of the prototype system is 1 174 Hz， with a load capacity of 416 kN）. The dynamic relative error of the three-dimensional generalized forces， within a frequency range of 8-800 Hz， is less than 5%. The device meets the increased precision measurement requirements for large loads with a high stiffness.