Abstract: This paper describes the trunk bones and the appendage bones of the golden monkey ( Rhinopithecus roxellanae ) . After comparing with rhesus macaqus ( Macaco mulatta) and fracois'leaf monkey(Presbytis francoisi), the authors found the following remarkable differences:1. The shoulder girdle has many morphological difference among the three monkeys. The scapular index of the golden monkey is over 110, but the indexes of the other two are under 90.2. The vertical and cross diameters of the pelvis of the golden monkey are larger than that of the rhesus monkey and fracois'leaf monkey. The two iliums of the golden monkey are slightly inclined dorsally, so that the pelvis also inclines from dorsal to ventral.3. The morphology and position of the tubers and trochanters of the appendage bones are different among the three species.The above variations are related to the living manner of the golden monkey, They live on the trees all the time for food and often spring between branches suddenly and violently their forelimbs require more rotating ability, so that the scapulas, the clavicles, the sternum and the humerus have taken place some variations. When they climb and set on the trees they alwayes keep erect posture, so that their pelvis has some morphological variations. These variations may be ecological adaptation at first, but through a long evolutional process, and natural selection, they became intrinsically, and fixed finally.