Abstract: 〗A specific topological space—θ complex was introduced, and the relations betweenS(n) closed space andS(n) θ closed space were discussed in θ complex. It was proved that if K is a θ complex which is S(n) closed , then K can be embedded in an S(n) θ closed space, which gived the answer to the open problem raised by Dikranjan and Giuli.