Using the technology for measuring single hole wave speed, the author made geological surrey and stability evaluation of regional engineering sites in the urban district of Shanghai. The evaluation parameters mainly include soil type of the site, category of the site, liquefying power of the site, and remarkable cycle of site pulsation. The regional engineering site within the city limits permitted by -15m belongs to the wear site, being of Grade IVbuilding site. The remarkable cycle of site pulsation is about 0.65 s in the south of the city proper, about 0.8s in the north of the city proper, and 0.7s in other areas. The southwestern urban area and the Suzhou River valley are liable to suffer from liquefying if Grade VIIearthquake should occur.