As the shortage of energy resources has become more and more serious, the energysaving buildings are increasingly popularized, and the energysaving buildings with the technology of the exterior heat preservation wall (heat insulation layer + protection layer), in particular, are being commonly recommended. Nevertheless, the examination and acceptance of the construction quality of the completed exterior hear preservation walls are  conducted now only by eye observation, localized tube bundle extraction or tensile test. It is therefore of great importance to find a feasible rapid test method for this aspect of work. The utilization of new infrared thermal image detection technology for testing the exterior heat preservation wall has been proved to be very effective.