Two strike-slip faults, Fault ZG-44 and Fault ZG-10, which cut Well ZG-43 Area in Tazhong Lower Arch are significant to control of hydrocarbon draining. Hydrocarbon migrates upward along these two strike-slip faults from Middle-Lower Cambrian rocks and transport as a T-shaped filling way by both sides within Lower Ordovician Yingshan carbonate reservoir. As from the faults away to their lateral sides, the V/Ni ratios show a decreasing trend and the physical properties of hydrocarbon such as the crude oil density, viscosity, sulfur content and wax content show a progressively increasing trend with increasing the distance to the faults, which can proves migration of the hydrocarbon from the strike-slip faults to their both lateral sides. According to the data from water, oil and gas wells, the altitudes of water, oil and gas beds are below -4 700 m, -4 500~-4 600 m and above -4 500 m respectively. The average gas/oil ratio is relatively high (4 136 m3/m3) in the wells of oil and gas horizon altitude above -4 500 m, and the ratio is relatively low (794 m3/m3) in the wells of oil and gas horizon altitude below -4 500 m. Therefore, the oil, gas and water are in normal differentiation on the whole. The average connectivity radius of oil and gas exploitation to other wells is about 600 m in Well ZG-43 area. As it is less than the radius, significant differences may exist in the upper limit of the barrier layer´s physical properties in time scales of both hydrocarbon accumulation and exploitation.