Abstract: It is a common phenomenon that various cracks appear in the construction of concrete structures.The appearance of cracks will have a certain impact on the construction of the building, thereby affecting the safety and performance of the entire construction project. Therefore, in the process of building engineering construction, we must pay close attention to the treatment of concrete cracks in the building construction,and properly handle the deep cracks. At present, my country's methods for deep crack treatment need to be improved. Based on this, all construction units must seriously explore effective methods to resolve deep cracks,and deal with deep cracks in a timely and effective manner to ensure that the safety and work performance of the entire construction project are in an optimal state.