The invention relates to a piezoelectric-type four-dimensional cutting force-measuring platform belonging to the technical field of sensing measurement and control, in particular to a force-measuring platform for detecting normal force and torque in three directions in the cutting process. The force-measuring platform comprises a base, a middle plate, an upper plate, a lead output plug, a lead, athermal baffle, a sealing ring, four piezoelectric quartz sensors, a protective pad and connecting screws, wherein the four piezoelectric quartz sensors in diamond arrangement between the base and the middle plate are uniformly distributed on the same circumference of the same horizontal plane. The piezoelectric-type four-dimensional cutting force-measuring platform can simultaneously measures the normal force and the torque in three directions in any cutting process, has the advantages of high sensitivity, good linearity and repeatability, little transversal interference and high measurementprecision and has universality for measuring drilling, grinding, milling, lathing and planing, thereby having wide application range.