含油气系统的研究和分析是评价盆地含油气的一种新方法 ,对研究油气藏的形成、提高勘探效益、降低勘探风险、预测有利的油气聚集带有着重要的意义。根据巴彦浩特盆地现有的勘探成果 ,对盆地含油气系统进行了分析 ,识别出盆地南部海西期—印支期石炭系破坏型含油气系统和北部燕山期—喜山期石炭系再生型含油气系统 ;在此基础上通过对油气勘探有利区带的分析 ,指出盆地北部及其中的黑汕托—赛勒背斜构造带是盆地开展油气勘探的有利区带 The research and analysis of petroleum system is a new method to evaluate hydrocarbon-bearing gas in the basin. It is of great significance to study the formation of oil and gas reservoirs, improve exploration benefits, reduce exploration risk and predict favorable hydrocarbon accumulation zones. Based on the existing exploration results in the Bayanhot Basin, the petroleum system in the basin was analyzed to identify the Hercynian-Indosinian carboniferous destructive petroleum system in the southern part of the basin and the regenerated carboniferous type in the northern Yanshanian-Xishan Period Based on the analysis of the favorable zones for oil and gas exploration, it is pointed out that the northern part of the basin and the Heishanituo-Sile anticline in the basin are the favorable zones for oil and gas exploration in the basin