Jingjiu railway in Hebei section is situated in Jizhong plain, where is peripheral depression of the Cenozoic Era, and there are a lot of active tectonics. This paper gives the interpretive results of the active tectonic by using remote sensing image. In this time, a number of tectonics of NWWdirection in all region are interpreted. The paper puts the stress on the scattering feature of active tectonics and approach the active tectonic's controling function to stream system geomorphy as well as the depth of earthquake source. The active tectonics changing in the depth is infered and proved by using CTdata. At last, it points Hebei plain is one of the most important active tectonic unit where the earth's crust is thin and the earth thermal current value is high, the influence of active tectonic to the earth's steady must be considered when the industries was distributed.