For users and operators, the use function and mental function of the heavy truck have a great meaning, therefore, in a lot of designers’ eyes, heavy truck is no longer a stiff machine simply, on the contrary, it can be considered as a combination of science and art to some extent. Heavy truck’s body and formative correlation analysis shows the relationship between the technology and modeling so does the function and modeling in a large level, and at the same time, it is also reflects our understanding of the modern aesthetic in a certain extent. So, dealing with the problem of the relevance of heavy truck body and modeling correctly makes a great contribution to our heavy truck modeling design.