Abstract: There are many cases showing that the reservoir induceds earthquake have a very close relation with the geologic structures.This paper discusses the relation of reservoir induced earthquakes with the intensively active geotectonic area, the fractured zone and differential movement among blocks in the light of data got in practical work.As is well known, the reservoir induced earthquakes are closely related with the geotectonic condition. Usually, this kind of shocks occurred in strongly active geotectonic areas, such as Cenozoic geosynclinal folding zone and Diwa region, especially in the arcuate inflection points of an active fault or at the intersection of several groups of structural lines, where the neotectonic differential movement was effected evidently. By means of triangulation and levelling it is suggested that the reservoir induced earthquakes also occurred at the tectonic junction of blocks (horst and graben) which are of a tectonic activity to a certain extent at present. Moreover, it is a portion in which the stress, particularly the tensile or shearing stress, is easily concentrated.