In the dissolved gas studying, the abundance is very important meaning. If reserve is used in the calculation, the abundance value would be deviated greatly, even the dissolved gas remaining recoverable reserves and the abundance show negative if the recovery efficiency is not high. Using the cumulative production of oil and dissolved gas abundances accrued from year to year could eliminate the impact of specific situations, thus allow the dissolved gas abundance more representative. The abundance values of Chinese regions show that that of the northwest area is the highest, the sea area the lowest, and great basins are generally higher than the adjacent smaller basins. However, in the same basin, the abundance values of different units in different fields, or of the same oil (field) exploration and development in different time, may be different considerably, indicating the controlling factors to the abundance of dissolved gas is complex. Generally speaking, the oil dissolved gas abundance is related to the gas-rich regions and also effects to its preservation directly. At present, the research on the dissolved gas in China is still quite weak, but using the dissolved gas has great potential，therefore we recommend appropriate strategies to promote its utilization.