The observation and research results of the outcrops and drilling cores show that Cambrian deepwater carbonate gravity flow depositional rock is widely distributed in the eastern part of Tarim Basin. The gravity flow rock can be divided into slope breccia, high-density calcarenaceous turbidite and low-density calcarenaceous turbidite. By means of marking single well thickness, analyzing seismic facies and drawing regional maps, it is shown that the slope breccia and the high-density calcarenaceous turbidite are distributed in a large scale of 40-80 km of width and 50-150 m of thickness along the Upper Cambrian slope. According to the core analysis and log interpretation, a certain thickness of good reservoirs may develop in the strata of gravity flow depositional rock, especially in the strata of high density turbidite. The fact of numerous oil and gas shows in the Upper Cambrian slope has revealed that the deepwater carbonate gravity flow rock is a domain worthy to prospect.