Since 1992, the concept of group culture has been under the influence of globalization. Corporate culture is frequently studied in multinational companies called cultural management. The expansion of the new market in the field of machine installation has made a great development of LILAMA. This paper examines the relationship between corporate culture and comprehensive quality management in LILAMA where contractor projects have been awarded contracts with high-value contracts. Data collected from 10 companies directly produced by Lilama were analyzed by using the Sem model. The results show that corporate culture impact on overall quality management, thus setting out management measures that create a competitive advantage for LILAMA and apply to other enterprises in Vietnam.