In today's comprehensive development of the domestic economy, China's construction industry has reaped remarkable achievements. As a very important composition in the field of construction in China, the characteristics of concrete engineering itself determines that it is prone to encounter a variety of problems, the most frequent of which is various cracks. Cracks not only affect the aesthetics of the building, but also affect the durability and safety of the project. Considering these potential hazards, the causes of concrete cracks must be carefully analyzed to control and improve them in an effective way to ensure the safety and stability of concrete buildings.