The studied nickel-bearing rock body group is located on the platform side in the boundary regions of Junggar platform and Altay geosynclion. The envi- ronments of formation of these rock bodies are the same as there in China and abroad. The ore-bearing magma is emplaced along the strutural zone. The depth of formation of rock body No, 1 is about IO-12km. The age of intrusion is about 285Ma, a little younger. The rock type of rock body No. 1 is noritic, a new type .of nickel-bearing rocks found in China. The major rock-forming minerals are chrysolites (Fo 76一 81)，bronzites (En 76-78)，plagioclases (An 31一65.8) as well as a little number of barkevikites, phlogopites and quartz. The body may be divided into four pe- trofacies. The prinapal petrogeresis is gravity crystalline fractionation, similar to the nickel-bearing rock body of Sudbary. It is known that norite is the most favourable nickel-bearing rock. Thus, the discovery of this deposit possesses an important significance to look for other deposits of the same type. M/E value of rocks in rock body No. 1 ranges from 1.0 to 2.81 The rocks, are basic and ultrabasic. The characteristics of rare earth element.(REE) of, rocks are: ΣREE=52.4一63.8ppm, La/Yb=6.8一12.9, Eu/Eu*=0.31一0. 81,. enriched in LREE. The distributional model of REE is similar that of tholeiite in trasitional region, and coincides with the environment of formation of the rock body group. The evolution of REE in magmatic crystallization accords with element distributional pattern in closed systems of Rayleigh.