本文对不同类型源岩进行了热模拟研究，结果表明：不同类型源岩在相同模拟温度的热作用下，形成的镜质体反射率有很大的差别；不同类型源岩的有机质在热模拟演化过程中，液态烃高峰产率期出现的模拟温度阶段也存在明显的差异．因此，用镜质体反射率作为造岩作用阶段和油气形成阶段划分的指标时，应该考虑源岩性质和有机质类型等的影响。 In this paper, the thermal simulation of different types of source rocks has been carried out. The results show that the vitrinite reflectances of different types of source rocks are greatly different under the same simulated temperature. During the evolution process, there are also significant differences in the simulated temperature phases that occur during the peak liquid hydrocarbon production period. Therefore, using vitrinite reflectance as an indicator of the stage of formation of rocks and the stage of hydrocarbon formation, the effects of source rocks and organic matter types should be considered.