Medical film reading method and device

The embodiment of the invention provides a medical film reading method and device. The method comprises the steps that if it is judged that a mouse meets the preset condition of dragging a segmentation line control block in a screen, the segmentation line control block is moved according to the position of a mouse in the screen, so that different images are rendered on the two sides of a segmentation line corresponding to the segmentation line control block; medical films are read based on the different images; wherein the preset condition is that when the position of the mouse in the screen is located in the area where the parting line control block is located, the left key of the mouse is in a pressed state. The image area is dynamically rendered through the mouse position, the size andthe position of the comparison image area can be dynamically regulated and controlled, and compared with a static comparison film reading mode in the prior art, the difference between the source imageand the functional image