This paper introduces the concept,theory and development of concrete maturity,expounds the application method of concrete maturity theory in the chain construction,and sets up the strength formula by collecting experimental data to estimate the early strength of concrete by the calculating method and graphical method.By this method,we can remove the form and crane the prefabricated part timely,especially in the winter.We can not only speed up the revolution of the module,but also improve the efficiency by this theory.When maintaining the prefabricated parts by artificial heating,we can estimate the immediate strength of the parts.This can help us determine whether we should heat the parts,which can save energy.