"Stage lighting" is a general term that includes not only the stage of the theater, but also other forms of performance occasions, such as the protruding stage, the performance venue with seats on all sides, the extended stage, and other stage types that appear according to experience requirements. Each type has different lighting problems. The closer the relationship between the actors and the audience, the more difficult the technology of shielding the lights is. Now the theater auditorium is also equipped with lights, and the audience will not feel the presence of the performance lights like the football fans under the floodlights at the beginning of the game. However, the basic principles of lighting still exist. For the stage effect to be realistic, the actors must have effective lights in at least two directions. This shows that for the performance center venue with surrounding seats, there needs to be lights installed all around, and it should be noted that the picture seen by each part of the audience for each scene is different. No matter from which angle you look at it, no matter what type of stage it is, the main purpose is to make every picture clear.