Regional structure transfer zone in Huanghua Basin is characterized by complicated fault zone that the main extension structures intersected each other with high angles.The transfer zone is situated in the extensional variation section of the basin

possessed twisting property

and resulted in the variation of the basin's texture and sedimentary characters.It is suggested by analysis that the differences in basement textures are the premise of the occurrence of regional structure transfer zone;non uniform oblique extension is the leading role;the variation of transformation and intensity of the basin's rift-subsidence is the motive mechanism.