In this paper, the distribution features of methyl phenanthrene from the hydrocarbon source rocks of Late Permian Linxi Formation in Zhalute Basin were analyzed. The results show that there are three distribution patterns of methyl phenanthrene. The distribution pattern of methyl phenanthrene in Middle - Upper Linxi Formation is the first one that the relation of relative abundance is 9-MP > 2-MP > 1-MP > 3-MP. The distribution pattern of methyl phenanthrene in Lower Linxi Formation is the second one and the third one that the relations of relative abundance are 2-MP ≈ 9-MP > 3-MP > 1-MP, 2-MP > 9-MP > 3-MP > 1-MP, respectively. It is found that there is a good positive correlation between the burial depth and the relative abundance of 3-MP and 2-MP. However, there is a good negative correlation between the burial depth and the relative abundance of 9-MP and 1-MP. Similarly, methyl phenanthrene indexes (MPI1, MPI2) have good negative correlation with the vitrinite reflectance. Rc ranges from 1.69 to 2.03 percent with an average value of about 1.90 percent and Ro ranges from 1.35 to 1.80 percent with an average value of about 1.57 percent. According to the relationships between the vitrinite reflectance and Rc, the source rocks turn into high mature stage. It is concluded that the hydrocarbon source rocks of Linxi Formation in Zhalute Basin have good gas generation potential.