With the effect of stress and stress field in Tanlu fault in Meso-Cenozoic,tectonic systems of various rotational shear structures are developed extensively in Huabei depression area in the second depression zone of new Cathaysian,which controls the generation and distribution of duplex hydrocarbon accumulation zones in different degrees.Oil and gas are concentrated in the inner cycle bed,divergent places,inner part of the arc faults and the lower-order twisting structures formed in tectonic movement active phase,which has important guiding significance in oil and gas exploration and development.