Modern analytical methods of organic petrology and organic geochemistry were used to carry out different tests like, Rock-Eval pyrolysis, Gray-King low-temperature dry distillation, and gas chromatography mass spectrometry (GC/MS) to analyse Dahuangshan oil shale. This paper also studies the abundance, the type and maturity of the organic matter, the content of total organic carbon (TOC), and hydrocarbon generating tendency of Dahuangshan oil shale. Chloroform bitumen A and its group composition were also studied. The results show that Dahuangshan oil shale is rich in organic matter and dominated by Type II1 kerogen, which has high oil generating potential. However, the degree of transformation of hydrocarbons into oil and gas is low. Group composition of chloroform bitumen A shows high content of saturated hydrocarbons and heavy components, but the content of aromatic hydrocarbons is relatively low. The composition and distribution of saturated hydrocarbons' fractions show that the sedimentary environment of Dahuangshan oil shale was moderately brackish.