The space and time in performance of Song-Yuan Drama is a basic form of being for theatre. The performers communicate with the audience in a way of inside and outside the Drama. The space and time in performance of Song-Yuan Drama includes four aspects: the reality, entertainment, fiction, and dialogue between character and backstage crew or the audience. The communication context always varies when performers change their role in Drama, which means that the space and time in performance will confront another situation. The space and time in performance of Song-Yuan Drama has two conspicuous characteristics. On the one hand, the space and time in performance exists with the communication context among performer, role, character and audience. On the other hand, the space and time in performance changes along with communication context's shift, and also loses in the train of the latter's disappearance.