Concrete structures are of great significance to the entire building. In the construction process of actual projects, concrete structures are more prone to cracks due to various factors, which reduces the safety and durability of building construction and use. In severe cases, accidents may even occur. Therefore, appropriate methods need to be adopted to prevent and control cracks during construction. This article summarizes and analyzes the hazards, locations, and causes of cracks in concrete structures during construction, and explores the crack prevention and control measures that should be taken during the design and construction stages. Finally, corresponding treatment plans for different cracks are proposed, which can provide reference and guidance for the prevention and control of concrete cracks in the future.