This paper aims at two points: First, it tries to find the position of two transcription systems in Fanyi Laoqida in the scope of Chinese Mandarins, in terms of the characters` pronunciation; second, it attempts to determine and understand the characteristics of each group. Various Chinese Mandarin dialects (a.k.a Guanhua) are generally divided into two groups: Northern type and Southern type. For this paper, the author applies biological classification method with pedigree diagram, and concludes that the Middle Ages Korean Chinese (in terms of its Characters` pronunciation) is a kind of pan-regional Mandarin, which is also a sister with the Northern type Mandarin. The author notes that biological classification method with a pedigree diagram has its own limits, when applied to languages such as Mandarin, because the exclusive innovations in languages come from both outside impacts as well.