///The characters and classification of bionomics environment in the area of world natural inheritance-the three rivers juxtaposition are disserted. The generating mechanism of the all kinds of bionomics environment is analyzed. This particular physiognomy and terrain is generated through the particular evolvement of geological environment in the area of the three rivers juxtaposition. The tridimensional clime and the construction of bionomics environment were generated through joint action of atmosphere circumfluence and the physiognomy in the area of the three rivers juxtaposition.