Abstract: The largest scale common trench which has the most comprehensive facilities has been built in Guangzhou University Town, and it has encountered ground treatment, investment and financing, expense distribution and other technology problems during its construction and management. For these problems, firstly used a consolidation, a composite foundation and a pile foundation in different districts, the problem of its foundation’s uneven settlement has been solved; further more, a mode of separate construction and operation has been adopted, a more reasonable balance in expense distribution has been found as well, its overall good results, can provide a reference for other similar projects.