This paper introduces the discovery of Wollastonite -2M in Shizishan Mountain, Anhwei Province. Its cell parmeter is: a=15.389(2) A，b=7.307(1) A,c=7.051(1) A, β=95.34(1)º。Through its chemical analysis,its physical and optical properties and its X-ray examination, I concluded this kind of mineral to be wollast- onite-2M.