Based on such analytical methods as EMPA, XRD and IR, the authors extensively studied a new Cr-bearing edenite variety. The results show that the empirical formula of Cr-bearing edenite is (Na0.50 Ca0.17 K0.06) 0.73 Ca2.00 (Mg3.92 ⅥAl0.79 Cr3+0.06Ti0.04Fe2+0.01Co0.01) 4.83 (Si6.54ⅣAl1.46) 8.00O22(OH)2 according to revised IMA98 amphibole nomenclature, with the deal expression being NaCa2(Mg4Al)Si7AlO22(OH)2. Its unit-cell parameters are a=9.8437（19）A，b=17.9474（37）A,c=5.2796（15)A，β=105.222（17）, V=904.404A3 and Z=2.It has been discovered in its structure that Ca is at the A site, Mg is displaced by Cr and Si by Al. All this indicates that the studied mineral is a new chromic-calcic amphibole related closely to a Si-poor and Ca- and Cr-rich genetic environment. The name given to Cr-bearing edenite is based on the chemical composition and the special color caused by chromium.