Abstract: In this paper, the cable deformation problem of the 110 kV high-voltage cable line of a transmission and transformation infrastructure project is discussed. This paper makes a comprehensive judgment on the cable deformation situation by hand touch, eye observation, scale measurement, X-ray and other comprehensive factors, and puts forward the causes of cable deformation by combining the site civil construction conditions, construction conditions, cable conditions and other comprehensive factors. Finally, the correctness of the supposition is verified by field anatomy. This paper provides a reference for the cable deformation treatment of infrastructure projects.