Environment simulation technology is a new developing peripheral technology,which mainly covers artificial man-made reappearance techniques of all kinds of nature environment and product test techniques under the simulated environment. Environment simulation equipment and environment test techniques have gone through the development from single parameter to multi parameters, from static simulation to dynamic simulation, from product environment tests to man-machine system environment tests. At present its development direction is to establish the comprehensive dynamic environment simulation equipment of a whole system with parameters and to conduct multi-parameter comprehensive dynamic environment tests, and man-machine system environment tests. Prableme could be identified and explained in a faster way through reappearing all kinds of environmental conditions in environment simulation equipment, to product environmental reliability tests, which is important for new product development and finished product quality inspection.