In recent years, it is expected to proactively introduce AI technology in the field of civil engineering. However, lack of knowledge related to AI technology makes it difficult to properly grasp the effects of the introduction of AI technology and to accumulate various data for using AI technology, and will be an obstacle to introduce AI technology. This paper, with the goal of making teaching materials, outlines the basic knowledge necessary for understanding AI technology for civil engineers who want to utilize AI technology for various problems in actual operations. Firstly, the histroy of AI is explained in order to properly imagine the AI technology indicated by the word of AI. Then, it is organized the ideas and inputs/outputs necessary to use AI technology. Lastly, through actual cases, understanding of AI technology is expected.