The fault delta, as here termed, is one, of which main tectonic movements, as well as some of principal geomorphic and hydrographic characteristics, are controlled by faultings. The composite Guangzhau Delta is composed of the faultmotiyated Xijiang-Beijiang Delta and the relatively stable Dongjiang Delta. The Xijiang-Beijiang delta is bordered by 2 faults of NW-trending system and crossed by some of the other system. The successive shifting to the right of Beijiang’s navigable course has been suggested to be related with the Coriolis force. However, the shifting is principally due to SW-ward inclination, resulted from faultings, of the foundation surface.