Assist Apparatus for calibarating Camera Sensor and Laser Sensor, and Sensor Calibration System and Method using the same

As an enhanced sensor calibration auxiliary device for calibrating a camera sensor and a laser distance sensor, provided is the sensor calibration auxiliary device including a horn-like body. The body includes a front inclined plane disposed on the front of an inclined plane and a rear inclined plane disposed on the rear of the inclined plane on the basis of the virtual inclined plane dividing the body in half in the height direction of the body. When viewing the body from the front side, a portion of the inner surface of the rear inclined plane is exposed through a cut part by forming the cut part, which passes through the front inclined plane, on the front inclined plane. A grid part with a grid is formed on the outer surface of the front inclined plane or the inner surface of the rear inclined plane. Also, a sensor calibration system using the enhanced sensor calibration auxiliary device and a sensor calibration method are provided.