Infrastructure aging and building deterioration are engineering problems, so it is an important issue to regularly check and measure damage. Now, It cost so many times and money in detection methods. Most important of all, It’s very danger. Therefore, this paper hopes to establish a system to solve the shortcomings of traditional detection methods. Non-contact measurement of image inspection is the easiest and quickest method. In this paper, the camera is connected to the recorder, and the data generated by the object to be tested is sorted out to correct the photo mode. After the photo is corrected, the collage can be used. Short time, money and low risk means to achieve the purpose of testing. In addition, the detection range of this method is wider and the resolution is higher, and the effect is more perfect.