Abstract: It reflects a typical divergent thinking process again from the theory of rock mass structure controlling to theMeta-Synthetic Analysis Methodology,and its essence is to seize principal contradiction and take into account the existence of many influential factors. It is a very specific and practical work for engineering geologists to better understand and evaluate the suitability,controllability of factors,engineering adjustability and other problems of the sites in different conditions,in the case that land resources become increasingly tense while our large scale scientific facility sites are restricted by many factors. The authors proposed the Dynamic Controlling Concept of the geological engineering based on One Rock,One Concept and One Method,in the evaluation processes of the Daya Bay neutrino experiments tunnel,China spallation neutron source site and seven other large scientific facility sites. Therefore,engineers can adjust the project layout timely and propose the transformation of the boundaries of the site and intensity of construction-related proposals to achieve a harmonious and reasonable regulation of geological engineering under the premise of concentrating on controlling structural elements,delineating adverse geological bodies.