Investment casting has been used in the aerospace military equipment, civil aviation and commercial aerospace area during the industrial development. In this paper, its research and development status in superalloy, titanium alloy, aluminum alloy and magnesium alloy were discussed in detail, and the research results of BIAM in recent years were mainly introduced. Different process characteristics among the investment technology and additive manufacturing, semi-solid forming, injection molding and other new process technologies were analyzed, meanwhile the development direction and research hotspots in the future were expected.