The described technology is a technique related to a method for controlling a mobile device cradle and combining images. The method for controlling a mobile device cradle performed in an application of a user device linked with the mobile device cradle, comprises: pairing the mobile device cradle with the user device; starting capturing an image based on an input of a user; extracting a subject from a captured image; calculating a moving speed and a moving direction of the subject extracted; and calculating a rotation speed and a rotation direction of a motor included in the mobile device cradle based on the calculated moving speed and moving direction, and controlling the motor based on the calculated rotation speed and rotation direction.