Stage truss aluminum usually consists of one or more platforms. Most of the main stage of the ancient amphitheater protrudes into the auditorium, or is lower than the auditorium (such as the stage of the ancient Greek fan theater), or higher than the auditorium (such as Chinese temple platform), for the audience to watch the play from three sides. The stage of an indoor theater usually faces the auditorium, and includes a framed stage, an extended stage, a center stage, etc.

Stage design is the design of "stage" as the subject matter, more specifically, the design of stage equipment, lighting, curtains, sound, performance props, suspension and replacement bracket system, costumes, and costumes as the subject matter. Similar to the display design, these subjects are all "supporting actors", and "performance activities" should be the protagonists.

In addition, the stage truss aluminum design also has the characteristics of the time dimension of the plot. In terms of the level of sophistication of stage design, it can be roughly divided into three types: open-air outdoor stage, mobile stage, and indoor stage. In terms of the development of stage design, the West and China also have different types.

In the West, there were major technological breakthroughs in stage design during the Renaissance, including: framed stage, perspective set, false perspective, fast (rotating) replacement side curtain system, etc., not only the "stage" centered on drama and opera "Design has become the main work content of Western stage design, and through the Renaissance movement, this stage design quickly spread from Italy to the entire Western world.

As far as the content handled by stage truss aluminum design, there are three main parts: auditorium, stage, and backstage. The auditorium includes seats, sound environment, field of view, entry and exit paths, and physical environment; stage includes lighting, curtain , Audio, performance props, suspension and replacement bracket system, costumes, costumes, etc.; the backstage includes dress-up and makeup, civil and martial arts (band), cutscenes, basic props display, and ready-to-play space, etc.

Therefore, the capabilities required for stage truss aluminum design include: knowledge of performance activities (or theater performances), stage painting, prop production (art crafts), stage lighting, knowledge of props and costume style evolution, knowledge of music and drama , Knowledge of sound control, etc.