The invention provides a contrast carrier device with geometric calibration phantom on computed tomography, comprising: a front ring body having a front outer peripheral surface； the front outer peripheral surface is provided with a front correction bead； a loading table, wherein one end of the loading table is connected with the front ring body； a rear ring body is oppositely arranged at the other end of the front ring body connected to the loading table, wherein the rear ring body has an outer peripheral surface, the rear peripheral surface is provided with a rear correction bead； a virtual axis passes through the center of the front ring body and the center of the rear ring body, respectively, and the front correction bead and the rear correction bead. The beads are arranged equidistantly along the virtual axis； and a support body is provided opposite to the other end of the rear ring body connected to the loading table, so that the contrast carrier device is fixed to a tomography scan, and the virtual axis coincide with a scan axis of the tomography device.
