Taking the whole life cycle of packaging as the main line, a green packaging manufacturing technology system is proposed. From the five key layers of green design technology, green material selection technology, green production technology, green recycling and treatment technology, green manufacturing evaluation technology, to establish a relatively complete green packaging manufacturing technology system. Taking the packaging design of soybean products as an example, the technical system was applied to analyze and evaluate the packaging design. The example shows that the application of the technology system is helpful to judge the green degree of packaging in the early stage of the whole life cycle, and provides guidance and reference for the research and application of green manufacturing of packaging.