The invention discloses a CT apparatus. The CT apparatus comprises a base and a support plate fixed on the base, wherein a display frame which can slide up and down is arranged at the front end of thesupport plate; a lifting block is fixedly arranged at the rear end surface, approaching the middle of the bottom position, of a display frame; and a lifting slide groove slidingly extending up and down and engaging with the lifting block is arranged at the front end surface of the support plate. The CT apparatus can meet the display requirement of placing two CT scans taken by a patient and can realize the switching operation between the two CT scans through automatic control, so that a doctor can take turns to view the CT scans to make reasonable explanation and analyze the condition for thepatient, can place the CT scans in a stable state without a bending phenomenon, and can also realize automatic adjustment of the observation height of the CT scans and adjustment of the image sharpness of the CT scans, and the whole apparatus can be operated safely and reliably.