The present invention belongs to the piezoelectric sensor technical field and relates to a load division adjustable piezoelectric six-dimensional force sensor which is used for measuring spatial six-dimensional forces/torques in different ranges. According to the sensor of the invention, a load-dividing plate is in rigid connection with the side surfaces of a cover plate and a base, so that a force on the cover plate can be loaded in a divided manner; and the load-dividing effect of the load-dividing plate can be changed through replacing a series of modular load-dividing plates, so that the range of the six-dimensional force sensor can be adjusted. With the method provided in the invention adopted, the measurement range of the six-dimensional force sensor can be broadened. The load division adjustable piezoelectric six-dimensional force sensor has the advantages of simple operation, convenient use and low cost.