Abstract: Currently, a variety of commercial software has been introduced from abroad into the oil & gas engineering design industry, which has a certain impact on the development cost and output process of the traditional engineering design industry. Hence, it is urgent to seek for high-efficiency application of the software. Besides, the domestic commercial process software is developed relatively slowly and not applied massively in the engineering design industry. So, the application status of foreign commercial process software was summarized systematically based on a variety of mainstream commercial software for relevant process design in the upstream-midstream and downstream projects of oil & gas engineering. The product characteristics, development trend and related impact on the industry were also expounded.Meanwhile, the product characteristics and development trend of domestic commercial process software were summarized, with comparative analysis on the advantages and disadvantages of the domestic commercial process software. On this basis, the application and efficiency improvement strategies were proposed for the foreign commercial process software, including the consideration and suggestions on the development of domestic commercial process software, so as to provide reference for the development, application and evolution of industrial process software for engineering design.