Cabo Sao Braz is a coastal area located about 200 Km to the south of Luanda. It is a part of the Sedimentary Edge of Angola and more precisely of the Kwanza Basin and is developed for 10 Km between 9 degrees 50' and 10 degrees 10' of South Latitude. In this paper are outlined the geomorphological and sedimentological features through the analysis of data obtained from direct observation and from the study of various cartographic maps and aerial photos. This work is arranged as a general study of the evolution of Angolan coastal area which presents a high value from an environmental and economic point of view connected to the wide urban and industrial settlements. Also provided to recognize the main morphoevolutive processes in order to carry out a corrected coastal management and to addressed to a balanced development and exploitation of touristic and natural resources.