The contemporary Grand Theater of international level in China was first built in Shanghai. The author has done a lot of work on the post occupancy evaluation for this theater. This paper is only a part of their researches, focussing their attention on briefly introducing the design intentions of the auditorium in terms of technological aspect, such as sight-line design, noise level control, acoustic design, the collected acoustic parameters measured from different points within the auditorium as well as the removable sound canopy and the alternative reverberation adjustable devices, etc. also quoting Important comments on the sound effects of the auditorium by both domestic and international famous experts in the theatrical and music circle and the evaluation scores by ordinary audiences from every aspects of users point of view are given.