The invention discloses a camera shooting method and device. The method comprises the steps that a current camera shooting image is obtained by receiving a camera shooting instruction triggered by a user; contour information of a to-be-shot target in the current camera shooting image is extracted; the brightness of the current camera shooting image is adjusted to a preset brightness value, and therefore a background of the to-be-shot target is brightened; focusing is conducted on the to-be-shot target according to the contour information, and shooting of the current camera shooting image is completed. According to the camera shooting method and device, by improving the background brightness of a framing interface, a focusing region can be positioned more accurately, the focusing time is greatly shortened, and therefore picture shooting is completed rapidly. According to the camera shooting method and device, the use experience of the user is greatly improved, and the practicability is improved. In addition, the invention further provides a mobile terminal which has the above-mentioned technical advantages.