The utility model discloses a portable camera device of a smart phone for equipment inspection. The system comprises a camera end, a data transmission line, a connecting plug module and a smart phone,the lower end part of the camera end is electrically connected to one end of a data transmission line; the other end of the opposite data transmission line is electrically connected to the connectingplug module; the connecting plug module is electrically connected to the smart phone; wherein a camera module, an image storage module and a gear adjusting module are arranged on the smart phone, thecamera end is cylindrical, a camera and an adjustable light supplementing lamp are arranged at the top end of the outer peripheral surface of the camera end, the camera is arranged at the upper partof the adjustable light supplementing lamp and is fixed with the adjustable light supplementing lamp, and the camera and the adjustable light supplementing lamp are connected with the smart phone through a data transmission line. The portable camera light supplement lamp is convenient to carry, can be adjusted by personnel according to actual field conditions during equipment inspection, capturesreal image data of a fault position, and facilitates rapid and accurate diagnosis of conditions of small parts of equipment.