Let G be a graph with n vertices,and H be a graph with m vertices.The corona G·H is the graph with n+mn vertices obtained from G and n copies of H by joining the i-th vertex of G to each vertex in the i-th copy of H(i=1,2,…,n).The Q-spectral characterization of the corona C_n·3K₁ was studied,where C_n·3K₁ was the corona of a cycle and three isolated vertices.It is proved that C_n·3K₁ is determined by its signless Laplacian spectrum when n≠32,64,128.