Abstract: The phenomena of associated coexistence of a variety of oil?gas reservoir types are more common in many basins. However, the current studies are only for a single type of reservoir in terms of petroleum existence or enrichment regularity. Taking Kuqa depression of Tarim basin as an example, the regional spatial distribution characteristics and rules of various reservoirs in this area were analyzed, and thought that the reservoirs in Kuqa depression have the rule and characteristics of petroleum“orderly accumulation”in regional and spatial domains. The orderly accumulation rule is mainly shown in three aspects:1) the order of the distribution of hydrocarbon components in different reservoirs; 2)the continuity of spatial distribution order of reservoir?forming dynamics, and 3) the order of the reservoir preservation mechanisms, all of which formed the associated coexistence of different types of reservoirs in space in Kuqa depression. This breakthrough of recognition is of great significance for further petroleum exploration in Kuqa depression.