The most difficult part of hidden danger investigation is that the industries involved are very extensive, and it is difficult for ordinary technicians to master the specialty, especially some hidden dangers are hidden, which are not easy to find if they are not professionals in this industry. In the face of such work problems, on the one hand, we should improve our professional ability, learn more, consult our predecessors, participate in more training every day, and gradually accumulate more and understand more. Then there is the ability to use the power of science and technology. It is said that science and technology are flourishing, but not many people are really willing to try new methods ... This inherent thinking should be actively changed. With the support of big data, Xitong's security inspection and intelligent management can naturally be accurate and comprehensive.