The invention discloses an integrated wild animal image automatic acquisition device and method, and the device is disposed in a wild animal monitoring region, and comprises a power management module which is used for providing a power supply for the whole device, and carrying out the equipment power consumption monitoring, charging management and power path management; an automatic image acquisition module used for realizing automatic acquisition of wild animal images; wherein the automatic image acquisition module comprises an infrared camera, a photosensitive element, an optical filter, an infrared LED lamp array, an illumination intensity sensor, a main controller and a pyroelectric sensor group; and a peripheral module used for realizing remote transmission, local storage and local preview of the images; the invention has the beneficial effects that the infrared camera is used as a main body, and the power management module, the image automatic acquisition module and the peripheral module are configured, so that the power supply problem of the wild animal monitoring equipment, the image definition problem in a complex light environment, the power consumption problem of the equipment and the like are solved, and the intelligent level of the wild animal monitoring system is further improved.