The invention discloses a method, device and system for realizing multi-picture rotation on a webpage. The method comprises the following steps: determining the initial position of each picture in multiple selected pictures on the webpage; determining an operation control boundary; determining an operation datum point; obtaining the rotation angle of the operation control boundary relative to theoperation datum point; for each picture in the multiple pictures, respectively determining a target position; and associating the target position, the initial position of each picture and the operation control boundary relative to the rotation angle of the datum point. According to the invention, the multiple pictures can be rotated in a simple mode, and simultaneously the layer relationship of the picture can be maintained.