The invention discloses a capsule endoscopy with automatically adjusted shooting frequency and a method thereof. The capsule endoscopy comprises a capsule endoscopy shell, a battery, a camera unit, a control module, a wireless signal transceiving module, a coil, a current inductor, a frame rate control module and a magnetic field generator, wherein the coil, the current inductor and the frame rate control module are arranged in the shell; the external magnetic field generator generates a magnetic field covering an activity range of the capsule endoscopy; the current inductor are connected with two poles of the coil to form a capsule motion signal; one end of the control module is connected with the current inductor and receives the capsule motion signal, while the other end is connected with the frame rate control module to transmit a control signal for adjusting the shooting frequency; and the frame rate control module is connected with the camera unit and directly controls the shooting frequency. The shooting frequency of the capsule endoscopy is controlled through a device for automatically adjusting the shooting frequency according to the movement of the capsule endoscopy, so that the electric quantity of the capsule endoscopy is saved, the miss shooting rate is reduced and the number of repeated images is reduced.