Carbonate reservoirs are divided into 4 types, including lacustrine carbonate reservoir one, marine source-marine reservoir one, young continental source-old marine reservoir one, and young continental source young marine reservoir one, by employing statistics of 1465 carbonate oil and gas pools (or reserve calculation units) in China. The marine source-marine reservoir type and the young continental source-old marine reservoir type give priority to proved oil reserves in place, leave each other account for 40.11, and 37.12, in general. The marine source-marine reservoir type monopolizes absolute predominance to proved gas reserves in place, occupy 93.28, in all. The distribution of proved reserves from petroleum corporations, basins, geological ages, buried depths and oil ranks reveal many distributing rules. This research has some signification for direction of petroleum exploration in carbonate rocks and is favorable for increasing benefit of exploration.