Let R = Fq[u, v]/ u 2 − 1, v 2 − v, uv − vu be a finite non-chain ring, where q is an odd prime power and u 2 = 1, v 2 = v, uv = vu. In this paper, we construct new non-binary quantum codes from (α + βu + γv + δuv)constacyclic codes over R. We give the structure of (α + βu + γv + δuv)constacyclic codes over R and obtain self-orthogonal codes over Fq by Gray map. By using Calderbank-Shor-Steane (CSS) construction and Hermitian construction from dual-containing (α + βu + γv + δuv)-constacyclic codes over R, some new non-binary quantum codes are obtained.2010 Mathematics Subject Classification: Primary: 94B05, 94B15; Secondary: 11T71. i=0 k i , d] linear code over F q , where k i is the dimension of linear code C i for i = 0, 1, 2, 3.