A veterinary DR device, comprising: a display; an X-ray emission module configured to generate an X-ray to penetrate an animal to be tested; an X-ray receiving module configured to receive the X-ray generated by the X-ray emission module, to convert received the X-ray into electric signals; an imaging module configured to obtain a medical image based on the electric signals converted by the X-ray receiving module; a memory configured to store a plurality of pieces of guidance information, wherein each piece of guidance information is used for assisting a user to capture a medical image of the animal to be tested in a body position to be tested; characterized in that a processor configured to obtain at least two body positions to be tested that are selected by the user for the animal to be tested, obtain a current body position from the at least two body positions to be tested, and control the display to display guidance information for the current body position; after receiving an exposure start instruction input by the user, control the X-ray emission module to emit the X-ray to the animal to be tested, for the purpose of obtaining a medical image for the current body position, and control the imaging module to obtain the medical image for the current body position based on the electric signal converted by the X-ray receiving module; and use, after detecting an exposure completion instruction triggered based on completion of obtaining the medical image for the current body position, a next body position to be tested as a new current body position according to a specified order, and control the display to display guidance information for the new current body position. a display; an X-ray emission module configured to generate an X-ray to penetrate an animal to be tested; an X-ray receiving module configured to receive the X-ray generated by the X-ray emission module, to convert received the X-ray into electric signals; an imaging module configured to obtain a medical image based on the electric signals converted by the X-ray receiving module; a memory configured to store a plurality of pieces of guidance information, wherein each piece of guidance information is used for assisting a user to capture a medical image of the animal to be tested in a body position to be tested; characterized in that a processor configured to obtain at least two body positions to be tested that are selected by the user for the animal to be tested, obtain a current body position from the at least two body positions to be tested, and control the display to display guidance information for the current body position; after receiving an exposure start instruction input by the user, control the X-ray emission module to emit the X-ray to the animal to be tested, for the purpose of obtaining a medical image for the current body position, and control the imaging module to obtain the medical image for the current body position based on the electric signal converted by the X-ray receiving module; and use, after detecting an exposure completion instruction triggered based on completion of obtaining the medical image for the current body position, a next body position to be tested as a new current body position according to a specified order, and control the display to display guidance information for the new current body position.