As the development of city construction, more and more high-rise buildings emerge in dense down town. Due to the narrow space of engineering and dense underground pipe nets, the spaces which can be used to construct become even smaller. Meanwhile the safety of around buildings should be taken into account while excavating the foundation pit. The contracy construction method of deep foundation pit successfully resolved the problems mentioned above. The main technical peculiarities, main technical measures and their existing problems of the contrary construction method were further discussed after the working principles of the method were clarified.