A first image adjustment device for demonstration teaching comprising: a first transceiver, configured to receive a control command sent by a second image adjustment device for demonstration teaching, wherein the control command comprises a to-be-displayed image and operation information with regard to the to-be-displayed image, and the second image adjustment device for demonstration teaching can control the first image adjustment device for demonstration teaching by using an interactive control device; a first eye tracking device, configured to acquire first pupillary distance information of a first operator, and acquire first eye positioning information of the first operator for the first image adjustment device for demonstration teaching; a first data control device, configured to dynamically adjust an image pixel arrangement of the to-be-displayed image on the first image adjustment device for demonstration teaching based on the first pupillary distance information and the first eye positioning information that are acquired by the first eye tracking device and the operation information; and a display device, configured to display a virtual display image obtained after the first data control device adjusts the image pixel arrangement, wherein the display device is a 3D display; wherein the operation information is generated with regard to the to-be-displayed image based on a position change caused by an operation on the to-be-displayed image; wherein the control command further comprises second pupillary distance information of the second operator on the side of the second image adjustment device for demonstration teaching, and second eye positioning information of the second operator for the second image adjustment device for demonstration teaching; and the first data control device comprises: a first calculation module, configured to calculate a first difference between the first pupillary distance information and the second pupillary distance information; a second calculation module, configured to calculate a second difference between the first eye positioning information and the second eye positioning information; and an adjustment module, configured to adjust the image pixel arrangement of the to-be-displayed image on the first image adjustment device for demonstration teaching based on the first difference and the second difference. a first transceiver, configured to receive a control command sent by a second image adjustment device for demonstration teaching, wherein the control command comprises a to-be-displayed image and operation information with regard to the to-be-displayed image, and the second image adjustment device for demonstration teaching can control the first image adjustment device for demonstration teaching by using an interactive control device; a first eye tracking device, configured to acquire first pupillary distance information of a first operator, and acquire first eye positioning information of the first operator for the first image adjustment device for demonstration teaching; a first data control device, configured to dynamically adjust an image pixel arrangement of the to-be-displayed image on the first image adjustment device for demonstration teaching based on the first pupillary distance information and the first eye positioning information that are acquired by the first eye tracking device and the operation information; and a display device, configured to display a virtual display image obtained after the first data control device adjusts the image pixel arrangement, wherein the display device is a 3D display; wherein the operation information is generated with regard to the to-be-displayed image based on a position change caused by an operation on the to-be-displayed image; wherein the control command further comprises second pupillary distance information of the second operator on the side of the second image adjustment device for demonstration teaching, and second eye positioning information of the second operator for the second image adjustment device for demonstration teaching; and the first data control device comprises: a first calculation module, configured to calculate a first difference between the first pupillary distance information and the second pupillary distance information; a second calculation module, configured to calculate a second difference between the first eye positioning information and the second eye positioning information; and an adjustment module, configured to adjust the image pixel arrangement of the to-be-displayed image on the first image adjustment device for demonstration teaching based on the first difference and the second difference. a first calculation module, configured to calculate a first difference between the first pupillary distance information and the second pupillary distance information; a second calculation module, configured to calculate a second difference between the first eye positioning information and the second eye positioning information; and an adjustment module, configured to adjust the image pixel arrangement of the to-be-displayed image on the first image adjustment device for demonstration teaching based on the first difference and the second difference.