Abstract: Since human conquered nature violently as well as the ecosystem itself, environmental degradation has become worse and worse. And it is the decrease of ecological capital reserve of the urban ecosystem that facilitates the collapse of this weak ecological system. It must be stressed that in recent years, along with the swift growth of transgenic technology, various GMOs has already impacted people’s daily life and productive activities effectively, therefore, the serviceable function of urban ecosystem has to advance with time too. Consequently, we should grasp the overall situation and seize the opportunity of this technology tide; adequately bring the security of biological development, too optimize the structure of such ecosystem, in addition accelerate a great-leap-forward development of it.