The utility model provides CRTS III type ballastless track plate finished product insulation detection equipment, which relates to the technical field of insulation detection, and comprises a test device, a detection rail and a detection platform, wherein the number of the detection rails is two, the detection platform comprises four supports, and each detection rail is supported and fixed by thetwo supports; the testing device is connected with the two detection rails and used for measuring the inductance value and the resistance value between the two detection rails. The utility model aimsto provide a CRTS III type ballastless track plate finished product insulation detection device which is used for detecting the insulation performance of a track plate, can reduce the hoisting times of a detection steel rail, reduces the interference of detection, and improves the precision and the detection effect. A clamp is manufactured to position the detection rail at one time to form a detection platform, so that the detection is convenient and rapid; the detection preparation work is reduced; working efficiency is improved, matching personnel and tools are reduced, cost is reduced, andcost is saved.